Topic: Oceans


From Mass Coral Bleaching, <br /> A Scientist Looks for Lessons

Interview

From Mass Coral Bleaching,
A Scientist Looks for Lessons

by katherine bagley
For climate scientist Kim Cobb, this year’s massive bleaching of coral reefs is providing sobering insights into the impacts of global warming. Yale Environment 360 talked with Cobb about the bleaching events and the push to make reefs more resilient to rising temperatures.
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How Satellites and Big Data<br /> Can Help to Save the Oceans

Opinion

How Satellites and Big Data
Can Help to Save the Oceans

by douglas mccauley
With new marine protected areas and an emerging U.N. treaty, global ocean conservation efforts are on the verge of a major advance. But to enforce these ambitious initiatives, new satellite-based technologies and newly available online data must be harnessed.
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Interview

How Ocean Noise Pollution
Wreaks Havoc on Marine Life

by richard schiffman
Marine scientist Christopher Clark has spent his career listening in on what he calls “the song of life” in the world’s oceans. In an interview with Yale Environment 360, he explains how these marine habitats are under assault from extreme—but preventable—noise pollution.
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Food Insecurity: Arctic Heat<br /> Is Threatening Indigenous Life

Report

Food Insecurity: Arctic Heat
Is Threatening Indigenous Life

by ed struzik
Subsistence hunters in the Arctic have long taken to the sea ice to hunt seals, whales, and polar bears. But now, as the ice disappears and soaring temperatures alter the life cycles and abundance of their prey, a growing number of indigenous communities are facing food shortages.
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In Mexico, Fish Poachers Push </br> Endangered Porpoises to Brink

Report

In Mexico, Fish Poachers Push
Endangered Porpoises to Brink

by ben goldfarb
China’s lucrative black market for fish parts is threatening the vaquita, the world’s most endangered marine mammal. The porpoises, who live only in the Gulf of California, are getting caught up as bycatch in illegal gill nets and killed.
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El Niño and Climate Change:<br /> Wild Weather May Get Wilder

Analysis

El Niño and Climate Change:
Wild Weather May Get Wilder

by fred pearce
This year’s El Niño phenomenon is spawning extreme weather around the planet. Now scientists are working to understand if global warming will lead to more powerful El Niños that will make droughts, floods, snowstorms, and hurricanes more intense.
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In Japan, a David vs Goliath<br /> Battle to Preserve Bluefin Tuna

Report

In Japan, a David vs Goliath
Battle to Preserve Bluefin Tuna

by winifred bird
A group of small-scale Japanese fishermen are waging an increasingly public struggle against industrial fishing fleets that are using sonar and huge nets to scoop up massive catches of spawning Pacific bluefin tuna.
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Eyes in the Sky: Green Groups <br />Are Harnessing Data from Space

Report

Eyes in the Sky: Green Groups
Are Harnessing Data from Space

by jacques leslie
An increasing number of nonprofit organizations are relying on satellite imagery to monitor environmental degradation. Chief among them is SkyTruth, which has used this data to expose the extent of the BP oil spill, uncover mining damage, and track illegal fishing worldwide.
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Unnatural Balance: How Food <br />Waste Impacts World’s Wildlife

Report

Unnatural Balance: How Food
Waste Impacts World’s Wildlife

by richard conniff
New research indicates that the food discarded in landfills and at sea is having a profound effect on wildlife populations and fisheries. But removing that food waste creates its own ecological challenges.
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The Sushi Project: Farming Fish <br />And Rice in California's Fields

Report

The Sushi Project: Farming Fish
And Rice in California's Fields

by jacques leslie
Innovative projects in California are using flooded rice fields to rear threatened species of Pacific salmon, mimicking the rich floodplains where juvenile salmon once thrived. This technique also shows promise for growing forage fish, which are increasingly threatened in the wild.
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How 'Third Way' Technologies <br />Can Help Turn Tide on Climate

Interview

How 'Third Way' Technologies
Can Help Turn Tide on Climate

by richard schiffman
In a Yale Environment 360 interview, Australian scientist and author Tim Flannery explains how the development of technologies that mimic the earth’s natural carbon-removing processes could provide a critical tool for slowing global warming.
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A Delicate Balance: Protecting <br />Northwest’s Glass Sponge Reefs

Report

A Delicate Balance: Protecting
Northwest’s Glass Sponge Reefs

by nicola jones
Rare and extensive reefs of glass sponges are found only one place on earth – a stretch of the Pacific Northwest coast. Now, efforts are underway to identify and protect these fragile formations before they are obliterated by fishing vessels that trawl the bottom.
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Global Extinction Rates: Why <br />Do Estimates Vary So Wildly?

Analysis

Global Extinction Rates: Why
Do Estimates Vary So Wildly?

by fred pearce
Is it 150 species a day or 24 a day or far less than that? Prominent scientists cite dramatically different numbers when estimating the rate at which species are going extinct. Why is that?
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As Ocean Waters Heat Up, <br />A Quest to Create ‘Super Corals’

Report

As Ocean Waters Heat Up,
A Quest to Create ‘Super Corals’

by nicola jones
With the world’s coral reefs increasingly threatened by warmer and more acidic seas, scientists are selectively breeding corals to create species with the best chance to survive in the coming century and beyond. Are genetically modified corals next?
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Photo Essay

The Wild Alaskan Lands at Stake
If the Pebble Mine Moves Ahead


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On an Unspoiled Caribbean Isle, <br />Grand Plans for Big Tourist Port

Report

On an Unspoiled Caribbean Isle,
Grand Plans for Big Tourist Port

by fred pearce
East Caicos is a tropical jewel – the largest uninhabitated island in the Caribbean and home to rare birds and pristine turtle-nesting beaches. But plans for a giant port for cruise and cargo ships could change it forever.
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A Little Fish with Big Impact <br />In Trouble on U.S. West Coast

Report

A Little Fish with Big Impact
In Trouble on U.S. West Coast

by elizabeth grossman
Scientists are concerned that officials waited too long to order a ban on U.S. Pacific sardine fishing that goes into effect July 1. The dire state of the sardine population is a cautionary tale about overharvesting these and other forage fish that are a critical part of the marine food web.
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Oil Drilling in Arctic Ocean: <br />A Push into Uncharted Waters

Analysis

Oil Drilling in Arctic Ocean:
A Push into Uncharted Waters

by ed struzik
As the U.S. and Russia take the first steps to drill for oil and gas in the Arctic Ocean, experts say the harsh climate, icy seas, and lack of infrastructure means a sizeable oil spill would be very difficult to clean up and could cause extensive environmental damage.
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Can the North Sea Wind Boom <br />And Seabird Colonies Coexist?

Report

Can the North Sea Wind Boom
And Seabird Colonies Coexist?

by fred pearce
Offshore wind farms have been proliferating in the North Sea, with more huge projects planned. But conservationists are concerned this clean energy source could threaten seabird colonies that now thrive in the sea’s shallow waters.
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How Long Can Oceans Continue <br />To Absorb Earth’s Excess Heat?

Analysis

How Long Can Oceans Continue
To Absorb Earth’s Excess Heat?

by cheryl katz
The main reason soaring greenhouse gas emissions have not caused air temperatures to rise more rapidly is that oceans have soaked up much of the heat. But new evidence suggests the oceans’ heat-buffering ability may be weakening.
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With Fins Off Many Menus, <br />A Glimmer of Hope for Sharks

Analysis

With Fins Off Many Menus,
A Glimmer of Hope for Sharks

by ted williams
For decades, the slaughter of sharks – sought after for their fins and meat – has been staggering. But bans on finning and new attitudes in Asia toward eating shark fin soup are leading to optimism about the future for these iconic ocean predators.
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Along Cuba’s Coast, The Last Best <br />Coral Reefs in the Caribbean Thrive

Photo Essay

Along Cuba’s Coast, The Last Best
Coral Reefs in the Caribbean Thrive

Decades of communist rule and a U.S. embargo have stifled coastal development in Cuba, which has had the beneficial effect of leaving many of the country’s coral reefs intact. In this gallery, photographer Robert Wintner documents the exquisite beauty and biodiversity of Cuba’s coral reef ecosystems.
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Why U.S. East Coast Should <br />Stay Off-Limits to Oil Drilling

Opinion

Why U.S. East Coast Should
Stay Off-Limits to Oil Drilling

by carl safina
It’s not just the potential for a catastrophic spill that makes President Obama’s proposal to open Atlantic Ocean waters to oil exploration such a bad idea. What’s worse is the cumulative impact on coastal ecosystems that an active oil industry would bring.
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Interview

Why Ocean Health Is Better
And Worse Than You Think

by fen montaigne
The good news is the world’s oceans have not experienced the extinctions that have occurred on land. But as ecologist Douglas McCauley explains in a Yale Environment 360 interview, marine life now face numerous threats even more serious than overfishing.
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As Extreme Weather Increases, <br />A Push for Advanced Forecasts

Analysis

As Extreme Weather Increases,
A Push for Advanced Forecasts

by cheryl katz
With a warmer atmosphere expected to spur an increase in major storms, floods, and other wild weather events, scientists and meteorologists worldwide are harnessing advanced computing power to devise more accurate, medium-range forecasts that could save lives and property.
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How Technology Is Protecting <br />World’s Richest Marine Reserve

Report

How Technology Is Protecting
World’s Richest Marine Reserve

by christopher pala
After years of fitful starts, the Pacific island nation of Kiribati this month banned all commercial fishing inside its huge marine reserve. New satellite transponder technology is now helping ensure that the ban succeeds in keeping out the big fishing fleets.
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For Vulnerable Barrier Islands, <br />A Rush to Rebuild on U.S. Coast

Report

For Vulnerable Barrier Islands,
A Rush to Rebuild on U.S. Coast

by rona kobell
Despite warnings from scientists, new construction continues on U.S. barrier islands that have been devastated by storms. The flood protection projects that accompany this development can have harmful consequences for coastal ecosystems being buffeted by climate change.
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After Steep Decline, Signs of <br />Hope for World’s Sea Turtles

Report

After Steep Decline, Signs of
Hope for World’s Sea Turtles

by ted williams
Nearly all sea turtle species have been classified as endangered, with precipitous declines in many populations in recent decades. But new protections, particularly in the U.S. and Central America, are demonstrating that dramatic recovery for these remarkable reptiles is possible.
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Fast-Warming Gulf of Maine<br />Offers Hint of Future for Oceans

Report

Fast-Warming Gulf of Maine
Offers Hint of Future for Oceans

by rebecca kessler
The waters off the coast of New England are warming more rapidly than almost any other ocean region on earth. Scientists are now studying the resulting ecosystem changes, and their findings could provide a glimpse of the future for many of the world’s coastal communities.
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Fostering Community Strategies For Saving the World's Oceans

Interview

Fostering Community Strategies For Saving the World's Oceans

by crystal gammon
To conservationist Ayana Elizabeth Johnson, getting coastal communities involved in plans to protect their waters is critical for protecting the planet's oceans. In an interview with Yale Environment 360, she talks about her work in one Caribbean island and how it shows how such a strategy can get results.
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Photo Essay

Cashes Ledge: New England's Underwater Laboratory

A little over 70 miles off the coast of New England, an unusual undersea mountain range, known as Cashes Ledge, rises from the seabed. The area teems with kelp forests, sea sponges, and a wide variety of fish and mollusks — much of it captured by ocean photographer Brian Skerry during dives made earlier this year
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How Norway and Russia Made <br />A Cod Fishery Live and Thrive

Report

How Norway and Russia Made
A Cod Fishery Live and Thrive

by john waldman
The prime cod fishing grounds of North America have been depleted or wiped out by overfishing and poor management. But in Arctic waters, Norway and Russia are working cooperatively to sustain a highly productive — and profitable — cod fishery.
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Scientists Look for Causes of <br />Baffling Die-Off of Sea Stars

Report

Scientists Look for Causes of
Baffling Die-Off of Sea Stars

by eric wagner
Sea stars on both coasts of North America are dying en masse from a disease that kills them in a matter of days. Researchers are looking at various pathogens that may be behind what is known as sea star wasting syndrome, but they suspect that a key contributing factor is warming ocean waters.
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Interview

Where Will Earth Head
After Its ‘Climate Departure’?

by diane toomey
Will the planet reach a point where its climate is significantly different from what has existed throughout human history, and if so, when? In an interview with Yale Environment 360, biogeographer Camilo Mora talks about recent research on this disquieting issue and what it means for the coming decades.
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Interview

Examining How Marine Life
Might Adapt to Acidified Oceans

by elizabeth grossman
In an interview with Yale Environment 360, marine biologist Gretchen Hofmann discusses how well mollusks and other shell-building organisms might evolve to live in increasingly corrosive ocean conditions caused by soaring CO2 emissions.
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Unsustainable Seafood: A New <br />Crackdown on Illegal Fishing

Report

Unsustainable Seafood: A New
Crackdown on Illegal Fishing

by richard conniff
A recent study shows that a surprisingly large amount of the seafood sold in U.S. markets is caught illegally. In a series of actions over the last few months, governments and international regulators have started taking aim at stopping this illicit trade in contraband fish.
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Scientists Focus on Polar Waters <br />As Threat of Acidification Grows

Report

Scientists Focus on Polar Waters
As Threat of Acidification Grows

by jo chandler
A sophisticated and challenging experiment in Antarctica is the latest effort to study ocean acidification in the polar regions, where frigid waters are expected to feel most acutely the ecological impacts of acidic conditions not seen in millions of years.
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Greenpeace’s Kumi Naidoo on <br />Russia and the Climate Struggle

Interview

Greenpeace’s Kumi Naidoo on
Russia and the Climate Struggle

by diane toomey
In a Yale Environment 360 interview, the outspoken executive director of Greenpeace discusses why his organization’s activists braved imprisonment in Russia to stop Arctic oil drilling and what needs to be done to make a sharp turn away from fossil fuels and toward a green energy economy.
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Documenting the Swift Change <br />Wrought by Global Warming

Photo Essay

Documenting the Swift Change
Wrought by Global Warming

by peter essick
Photographer Peter Essick has traveled the world documenting the causes and consequences of climate change. In a Yale Environment 360 photo essay, we present a gallery of images Essick took while on assignment in Antarctica, Greenland, and other far-flung locales.
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A North Atlantic Mystery: <br />Case of the Missing Whales

Report

A North Atlantic Mystery:
Case of the Missing Whales

by rebecca kessler
Endangered North Atlantic right whales are disappearing from customary feeding grounds off the U.S. and Canadian coasts and appearing in large numbers in other locations, leaving scientists to wonder if shifts in climate may be behind the changes.
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Using Ocean Robots to Unlock <br />Mysteries of CO2 and the Seas

Interview

Using Ocean Robots to Unlock
Mysteries of CO2 and the Seas

by todd woody
Marine phytoplankton are vital in absorbing ever-increasing amounts of CO2 from the atmosphere. In a Yale Environment 360 interview, researcher Tracy Villareal explains how he is using remotely operated robots to better understand how this process mitigates climate change.
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A Year After Sandy, The Wrong <br />Policy on Rebuilding the Coast

Opinion

A Year After Sandy, The Wrong
Policy on Rebuilding the Coast

by rob young
One year after Hurricane Sandy devastated parts of the U.S. East Coast, the government is spending billions to replenish beaches that will only be swallowed again by rising seas and future storms. It’s time to develop coastal policies that take into account new climate realities.
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Rising Waters: How Fast and <br />How Far Will Sea Levels Rise?

Analysis

Rising Waters: How Fast and
How Far Will Sea Levels Rise?

by nicola jones
Although the latest U.N. climate report significantly increases its projections for sea level rise this century, some scientists warn even those estimates are overly conservative. But one thing is certain: Predicting sea level rise far into the future is a very tricky task.
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In Japan, Captive Breeding <br />May Help Save the Wild Eel

Report

In Japan, Captive Breeding
May Help Save the Wild Eel

by winifred bird
As eel populations plummet worldwide, Japanese scientists are racing to solve a major challenge for aquaculture — how to replicate the life cycle of eels in captivity and commercially produce a fish that is a prized delicacy on Asian dinner tables.
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Leaving Our Descendants<br /> A Whopping Rise in Sea Levels

Interview

Leaving Our Descendants
A Whopping Rise in Sea Levels

by fen montaigne
German scientist Anders Levermann and his colleagues have released research that warns of major sea level increases far into the future. In an interview with Yale Environment 360, he raises important questions about how much we really care about the world we will leave to those who come after us.
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In Mekong Delta, Rice Boom<br /> Has Steep Environmental Cost

Report

In Mekong Delta, Rice Boom
Has Steep Environmental Cost

by mike ives
Vietnam has become one of the world’s leading rice producers, thanks to the construction of an elaborate network of dikes and irrigation canals. But these extensive infrastructure projects in the storied Mekong Delta have come at a high ecological price.
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New Initiatives to Clean Up<br /> The Global Aquarium Trade

Report

New Initiatives to Clean Up
The Global Aquarium Trade

by rebecca kessler
An estimated 30 million fish and other creatures are caught annually to supply the home aquarium market, taking a toll on some reef ecosystems. Now conservationists are working to improve the industry by ending destructive practices and encouraging aquaculture.
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No Refuge: Tons of Trash Covers<br /> The Remote Shores of Alaska

Opinion

No Refuge: Tons of Trash Covers
The Remote Shores of Alaska

by carl safina
A marine biologist traveled to southwestern Alaska in search of ocean trash that had washed up along a magnificent coast rich in fish, birds, and other wildlife. He and his colleagues found plenty of trash – as much as a ton of garbage per mile on some beaches.
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An Economic Boom in Turkey<br /> Takes a Toll on Marine Life

Report

An Economic Boom in Turkey
Takes a Toll on Marine Life

by sulmaan khan
The development-at-any-cost policies of Turkish Prime Minister Recip Tayyip Erdogan — a key factor behind the protests and clashes in Istanbul’s Taksim Square — are also playing a role in the steady decline of the nation’s porpoises, dolphins, and other marine life.
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As Extreme Weather Increases,<br /> Bangladesh Braces for the Worst

Opinion

As Extreme Weather Increases,
Bangladesh Braces for the Worst

by brian fagan
Scientists are predicting that warming conditions will bring more frequent and more intense extreme weather events. Their warnings hit home in densely populated Bangladesh, which historically has been hit by devastating sea surges and cyclones.
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China’s New Arctic Presence<br /> Signals Future Development

Report

China’s New Arctic Presence
Signals Future Development

by ed struzik
China’s recent admission to the Arctic Council under observer status reflects a new reality: the world’s economic powers now regard development of natural resources and commerce in an increasingly ice-free Arctic as a top priority.
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In Post-Tsunami Japan, A Push<br /> To Rebuild Coast in Concrete

Report

In Post-Tsunami Japan, A Push
To Rebuild Coast in Concrete

by winifred bird
In the wake of the 2011 tsunami, the Japanese government is forgoing an opportunity to sustainably protect its coastline and is instead building towering concrete seawalls and other defenses that environmentalists say will inflict serious damage on coastal ecosystems.
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A Key Experiment to Probe the<br /> Future of Our Acidifying Oceans

Report

A Key Experiment to Probe the
Future of Our Acidifying Oceans

by peter friederici
In a Swedish fjord, European researchers are conducting an ambitious experiment aimed at better understanding how ocean acidification will affect marine life. Ultimately, these scientists hope to determine which species might win and which might lose in a more acidic ocean.
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As Final U.S. Decision Nears,<br /> A Lively Debate on GM Salmon

Opinion

As Final U.S. Decision Nears,
A Lively Debate on GM Salmon

In an online debate for Yale Environment 360, Elliot Entis, whose company has created a genetically modified salmon that may soon be for sale in the U.S., discusses the environmental and health impacts of this controversial technology with author Paul Greenberg, a critic of GM fish.
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A Leading Marine Biologist<br /> Works to Create a ‘Wired Ocean’

Interview

A Leading Marine Biologist
Works to Create a ‘Wired Ocean’

by ben goldfarb
Stanford University scientist Barbara Block heads a program that has placed satellite tags on thousands of sharks, bluefin tuna, and other marine predators to better understand their life cycles. Now, using data available on mobile devices, she hopes to enlist public support for protecting these threatened creatures.
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Will Reform Finally End The<br /> Plunder of Europe’s Fisheries?

Analysis

Will Reform Finally End The
Plunder of Europe’s Fisheries?

by christian schwägerl
Maria Damanaki, Europe’s crusading fisheries minister, is making major headway in changing a cozy, “old boys” network that over-subsidized the European fishing industry and brought about the severe overfishing of the continent’s marine bounty.
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To Control Floods, The Dutch<br /> Turn to Nature for Inspiration

Report

To Control Floods, The Dutch
Turn to Nature for Inspiration

by cheryl katz
The Netherlands’ system of dikes and sea gates has long been the best in the world. But as the country confronts the challenges of climate change, it is increasingly relying on techniques that mimic natural systems and harness nature’s power to hold back the sea.
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Proposed Energy Exploration<br /> Sparks Worry on Ocean Canyons

Report

Proposed Energy Exploration
Sparks Worry on Ocean Canyons

by paul greenberg
The Atlantic Canyons off the Northeastern U.S. plunge as deep as 15,000 feet and harbor diverse and fragile marine ecosystems. Now, the Obama administration’s plans to consider offshore oil and gas exploration in the canyons is troubling conservationists.
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Hurricane Sandy Relief Bill<br /> Fails to Face Coastal Realities

Opinion

Hurricane Sandy Relief Bill
Fails to Face Coastal Realities

by rob young
As part of the sorely-needed aid package to help victims of Hurricane Sandy, Congress is also considering spending billions on ill-advised and environmentally damaging beach and coastal rebuilding projects that ignore the looming threats of rising seas and intensifying storms.
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What’s Damaging Marshes on<br /> U.S. Coast and Why It Matters

Interview

What’s Damaging Marshes on
U.S. Coast and Why It Matters

by kevin dennehy
A nine-year study led by researcher Linda Deegan points to the damage that human-caused nutrients inflict on salt marshes along the U.S. East Coast. In a Yale Environment 360 interview, she describes what these findings mean for an ecosystem that provides critical services, from nourishing marine life to buffering the coast from storms like Sandy.
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Too Big to Flood? Megacities<br /> Face Future of Major Storm Risk

Report

Too Big to Flood? Megacities
Face Future of Major Storm Risk

by bruce stutz
As economic activity and populations continue to expand in coastal urban areas, particularly in Asia, hundreds of trillions of dollars of infrastructure, industrial and office buildings, and homes are increasingly at risk from intensifying storms and rising sea levels.
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How Fishing Gear is Killing<br /> Whales in the North Atlantic

Report

How Fishing Gear is Killing
Whales in the North Atlantic

by rebecca kessler
Researchers have been documenting the deadly threat that fishing lines and ropes pose to large whales that become entangled in them. Now, new studies are pointing to another disturbing fact: the ensnared whales endure enormous pain and prolonged suffering.
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Easing The Collateral Damage<br /> That Fisheries Inflict on Seabirds

Report

Easing The Collateral Damage
That Fisheries Inflict on Seabirds

by jeremy hance
Two recent studies highlight the harm that industrial fisheries are doing to the world’s seabirds, either by overharvesting the birds’ favorite prey or by drowning birds hooked on longlines. But tighter regulations and innovative technologies are starting to significantly reduce seabird “bycatch,” slashing it by 90 percent in some regions.
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Shrimp Farms’ Tainted Legacy<br /> Is Target of Certification Drive

Report

Shrimp Farms’ Tainted Legacy
Is Target of Certification Drive

by marc gunther
As shrimp aquaculture has boomed globally to keep pace with surging demand, the environmental toll on mangroves and other coastal ecosystems has been severe. Now, conservation groups and some shrimp farmers are creating a certification scheme designed to clean up the industry and reward sustainable producers.
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Will Fish-Loving Japan <br />Embrace Sustainable Seafood?

Report

Will Fish-Loving Japan
Embrace Sustainable Seafood?

by winifred bird
In fish-crazed Japan, where eating seafood is a vital part of the nation's culture, conservation groups are working with companies to persuade more Japanese to eat certified, sustainably caught seafood. It's an uphill struggle, but one that could have significant impact on the world's fisheries.
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The Vital Chain: Connecting<br /> The Ecosystems of Land and Sea

Analysis

The Vital Chain: Connecting
The Ecosystems of Land and Sea

by carl zimmer
A new study from a Pacific atoll reveals the links between native trees, bird guano, and the giant manta rays that live off the coast. In unraveling this intricate web, the researchers point to the often little-understood interconnectedness between terrestrial and marine ecosystems.
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Melting Sea Ice Could Lead<br /> To Pressure on Arctic Fishery

Report

Melting Sea Ice Could Lead
To Pressure on Arctic Fishery

by ed struzik
With melting sea ice opening up previously inaccessible parts of the Arctic Ocean, the fishing industry sees a potential bonanza. But some scientists and government officials have begun calling for a moratorium on fishing in the region until the true state of the Arctic fishery is assessed.
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In Fight to Save Coral Reefs,<br /> Finding Strategies that Work

Interview

In Fight to Save Coral Reefs,
Finding Strategies that Work

by kevin dennehy
In four decades as a marine biologist, Nancy Knowlton has played a key role in documenting the biodiversity of coral reefs and the threats they increasingly face. In an interview with Yale Environment 360, she assesses the state of the world’s corals and highlights conservation projects that offer hope of saving these irreplaceable ecosystems.
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Mysteries of Killer Whales<br /> Uncovered in the Antarctic

Dispatch

Mysteries of Killer Whales
Uncovered in the Antarctic

by fen montaigne
Two of the world’s leading experts on the world’s top marine predator are now in Antarctica, tagging and photographing a creature whose remarkably cooperative hunting behavior and transmission of knowledge across generations may be rivaled only by humans.
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Northwest Oyster Die-offs Show<br /> Ocean Acidification Has Arrived

Report

Northwest Oyster Die-offs Show
Ocean Acidification Has Arrived

by elizabeth grossman
The acidification of the world’s oceans from an excess of CO2 has already begun, as evidenced recently by the widespread mortality of oyster larvae in the Pacific Northwest. Scientists say this is just a harbinger of things to come if greenhouse gas emissions continue to soar.
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A World Centered on Sea Ice<br /> Is Changing Swiftly at the Poles

Analysis

A World Centered on Sea Ice
Is Changing Swiftly at the Poles

by fen montaigne
For eons, the polar marine food chain has been closely linked to the seasonal formation and retreat of sea ice. Now, as that ice rapidly melts in the Arctic and along the Antarctic Peninsula, this intricate web of life is undergoing major shifts, benefiting some creatures and putting others at risk.
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New Model for Aquaculture<br /> Takes Hold Far from the Sea

Interview

New Model for Aquaculture
Takes Hold Far from the Sea

With ever-greater quantities of seafood coming from aquaculture operations, some companies are working on ways to reduce the environmental impact of fish farming. In an interview with Yale Environment 360, Josh Goldman of Australis Aquaculture talks about his highly praised closed-containment fish farm in Massachusetts.
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The Unfulfilled Promise of the<br /> World’s Marine Protected Areas

Analysis

The Unfulfilled Promise of the
World’s Marine Protected Areas

by bruce barcott
Biologists and conservationists maintain that establishing marine reserves — areas where fishing is off-limits or severely restricted — offers the best hope for recovery for our overstressed oceans. So why is such a small area of the world's oceans protected?
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As Arctic Sea Ice Retreats,<br /> Storms Take Toll on the Land

Report

As Arctic Sea Ice Retreats,
Storms Take Toll on the Land

by ed struzik
For millennia, the blanket of ice covering the Arctic Ocean protected the shore from damaging storms. But as that ice buffer disappears, increasingly powerful storm surges are eroding the coastline and sending walls of seawater inland, devastating Arctic ecosystems that support abundant wildlife.
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One Year Later: Assessing the<br /> Lasting Impact of the Gulf Spill

Opinion

One Year Later: Assessing the
Lasting Impact of the Gulf Spill

by carl safina
On the anniversary of the Deepwater Horizon explosion, the worst fears about the long-term damage from the oil spill have not been realized. But the big challenge is more fundamental: repairing the harm from the dams, levees, and canals that are devastating the Mississippi Delta and the Louisiana coast.
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After the Great Quake,<br /> Living with Earth’s Uncertainty

Essay

After the Great Quake,
Living with Earth’s Uncertainty

by verlyn klinkenborg
The Japanese earthquake and tsunami remind us that we exist in geologic time and in a world where catastrophic events beyond our predicting may occur. These events — and the growing specter of climate change — show how precariously we exist on the surface of a volatile planet.
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Tracking the Destructive Power<br /> Of the Pacific Ocean’s Tsunamis

Interview

Tracking the Destructive Power
Of the Pacific Ocean’s Tsunamis

The devastating tsunami in northeastern Japan is only one of many that have battered Japan over the eons. In an interview with Yale Environment 360, tsunami and earthquake expert Lori Dengler describes the historic and paleological record of tsunamis across the Pacific, and what it may mean in the future for Japan and the western United States.
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Deep-Sea Mining is Coming:<br /> Assessing the Potential Impacts

Interview

Deep-Sea Mining is Coming:
Assessing the Potential Impacts

by erica westly
Numerous companies are moving ahead rapidly with plans to mine copper, gold, and other minerals near hydrothermal vents on the ocean floor. But in an interview with Yale Environment 360, marine biologist Cindy Lee Van Dover warns that without environmental safeguards the unique ecosystems of deep-sea vents could be severely damaged.
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How Fisheries Can Gain From<br /> The Lessons of Sustainable Food

Opinion

How Fisheries Can Gain From
The Lessons of Sustainable Food

by john waldman
As agriculture and energy production have made strides toward becoming more sustainable, the world’s fisheries have lagged behind. But restoring our beleaguered oceans to health will require an emphasis on diversification and conservation — and a more sensible mix of fishing practices.
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In Novel Approach to Fisheries, <br />Fishermen Manage the Catch

Report

In Novel Approach to Fisheries,
Fishermen Manage the Catch

by bruce barcott
An increasingly productive way of restoring fisheries is based on the counter-intuitive concept of allowing fishermen to take charge of their own catch. But the success of this growing movement depends heavily on a strong leader who will look out not only for the fishermen, but for the resource itself.
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Massive Outbreak of Jellyfish<br /> Could Spell Trouble for Fisheries

Report

Massive Outbreak of Jellyfish
Could Spell Trouble for Fisheries

by richard stone
The world’s oceans have been experiencing enormous blooms of jellyfish, apparently caused by overfishing, declining water quality, and rising sea temperatures. Now, scientists are trying to determine if these outbreaks could represent a “new normal” in which jellyfish increasingly supplant fish.
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Is the End in Sight for<br /> The World’s Coral Reefs?

Analysis

Is the End in Sight for
The World’s Coral Reefs?

by j.e.n. veron
It is a difficult idea to fathom. But the science is clear: Unless we change the way we live, the Earth's coral reefs will be utterly destroyed within our children's lifetimes.
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Hatch-22: The Problem with<br /> The Pacific Salmon Resurgence

Report

Hatch-22: The Problem with
The Pacific Salmon Resurgence

by bruce barcott
The number of salmon in the Pacific Ocean is twice what it was 50 years ago. But there is a downside to this bounty, as growing numbers of hatchery-produced salmon are flooding the Pacific and making it hard for threatened wild salmon species to find enough food to survive.
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Exploring the Links Between<br /> Hurricanes and Ocean Warming

Interview

Exploring the Links Between
Hurricanes and Ocean Warming

One of the more contentious issues facing climate scientists is whether rising ocean temperatures will cause more frequent and powerful hurricanes. In an interview with Yale Environment 360, Kerry Emanuel, of the Massachusetts Institute of Technology, says that amid the uncertainty, one thing seems likely: an increase in the most potent — and destructive — storms.
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A Steady, Steep Decline for<br /> The Lowly, Uncharismatic Eel

Report

A Steady, Steep Decline for
The Lowly, Uncharismatic Eel

by james prosek
The freshwater eel, which spawns in the middle of the ocean, was once abundant in much of the world. But the proliferation of dams, coastal development, and overfishing have drastically reduced eel populations, with few defenders coming to the aid of these fascinating — though still not fully understood — creatures.
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The Legacy of the Gulf Spill:<br /> What to Expect for the Future?

Report

The Legacy of the Gulf Spill:
What to Expect for the Future?

by john mcquaid
The Gulf of Mexico’s capacity to recover from previous environmental assaults — especially the 1979 Ixtoc explosion — provides encouragement about the prospects for its post-Deepwater future. But scientists remain worried about the BP spill's long-term effects on the health of the Gulf and its sea life.
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A Looming Oxygen Crisis and<br /> Its Impact on World’s Oceans

Analysis

A Looming Oxygen Crisis and
Its Impact on World’s Oceans

by carl zimmer
As warming intensifies, scientists warn, the oxygen content of oceans across the planet could be more and more diminished, with serious consequences for the future of fish and other sea life.
READ MORE

High Above the Earth,<br /> Satellites Track Melting Ice

Report

High Above the Earth,
Satellites Track Melting Ice

by michael d. lemonick
The surest sign of a warming Earth is the steady melting of its ice zones, from disappearing sea ice in the Arctic to shrinking glaciers worldwide. Now, scientists are using increasingly sophisticated satellite technology to measure the extent, thickness, and height of ice, assembling an essential picture of a planet in transition.
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As the Far North Melts,<br /> Calls Grow for Arctic Treaty

Analysis

As the Far North Melts,
Calls Grow for Arctic Treaty

by ed struzik
The massive oil spill in the Gulf of Mexico is a warning, conservationists say, of what could happen in the Arctic as melting sea ice opens the Arctic Ocean to oil and gas drilling. Many experts argue that the time has come to adopt an Arctic Treaty similar to the one that has safeguarded Antarctica for half a century.
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The Oil Spill’s Growing Toll<br /> On Sea Life in the Gulf of Mexico

Interview

The Oil Spill’s Growing Toll
On Sea Life in the Gulf of Mexico

by david biello
A prominent marine biologist says the impacts of the oil gushing into the Gulf of Mexico will persist for years, no matter when the flow finally stops. What’s more, scientist Thomas Shirley says that most of the damage remains out of sight below the surface, as creatures succumb to the toxic effects of the rapidly spreading tide of oil.
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Under Pressure to Block Oil,<br /> A Rush To Dubious Projects

Opinion

Under Pressure to Block Oil,
A Rush To Dubious Projects

by rob young
In response to the widening disaster in the Gulf of Mexico, government officials have approved a plan to intercept the oil by building a 45-mile sand berm. But scientists fear the project is a costly boondoggle that will inflict further environmental damage and do little to keep oil off the coast.
READ MORE

The Microbe Factor and <br />Its Role in Our Climate Future

Analysis

The Microbe Factor and
Its Role in Our Climate Future

by carl zimmer
Within the planet’s oceans and soils are trillions of bacteria that store and release far more carbon dioxide than all of the Earth’s trees and plants. Now, scientists are attempting to understand how the world’s bacteria will influence — and be influenced by — a warming climate.
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Anatomy of the BP Oil Spill:<br /> An Accident Waiting to Happen

Analysis

Anatomy of the BP Oil Spill:
An Accident Waiting to Happen

by john mcquaid
The oil slick spreading across the Gulf of Mexico has shattered the notion that offshore drilling had become safe. A close look at the accident shows that lax federal oversight, complacency by BP and the other companies involved, and the complexities of drilling a mile deep all combined to create the perfect environmental storm.
READ MORE

After Two Decades of Delay,<br /> A Chance to Save Bluefin Tuna

Opinion

After Two Decades of Delay,
A Chance to Save Bluefin Tuna

by carl safina
The obscenely profitable market for bluefin tuna in Japan has led to years of overfishing and left the world’s bluefin population badly depleted. A ban on the bluefin trade, if adopted at international talks this month, would go a long way toward giving this magnificent fish a chance to recover.
READ MORE

An Ominous Warning on the<br />  Effects of Ocean Acidification

Analysis

An Ominous Warning on the
Effects of Ocean Acidification

by carl zimmer
A new study says the seas are acidifying ten times faster today than 55 million years ago when a mass extinction of marine species occurred. And, the study concludes, current changes in ocean chemistry due to the burning of fossil fuels may portend a new wave of die-offs.
READ MORE

How High Will Seas Rise?<br /> Get Ready for Seven Feet

Opinion

How High Will Seas Rise?
Get Ready for Seven Feet

by rob young and orrin pilkey
As governments, businesses, and homeowners plan for the future, they should assume that the world’s oceans will rise by at least two meters — roughly seven feet — this century. But far too few agencies or individuals are preparing for the inevitable increase in sea level that will take place as polar ice sheets melt.
READ MORE

In Search of New Waters,<br /> Fish Farming Moves Offshore

Report

In Search of New Waters,
Fish Farming Moves Offshore

by john mcquaid
As wild fish stocks continue to dwindle, aquaculture is becoming an increasingly important source of protein worldwide. Now, a growing number of entrepreneurs are raising fish in large pens in the open ocean, hoping to avoid the many environmental problems of coastal fish farms.
READ MORE

The Nitrogen Fix:<br /> Breaking a Costly Addiction

Analysis

The Nitrogen Fix:
Breaking a Costly Addiction

by fred pearce
Over the last century, the intensive use of chemical fertilizers has saturated the Earth’s soils and waters with nitrogen. Now scientists are warning that we must move quickly to revolutionize agricultural systems and greatly reduce the amount of nitrogen we put into the planet's ecosystems.
READ MORE

A Total Ban on Whaling?<br /> New Studies May Hold the Key

Opinion

A Total Ban on Whaling?
New Studies May Hold the Key

by fred pearce
As the International Whaling Commission debates whether to ban all whaling or to expand the limited hunts now underway, recent research has convinced some scientists that the world’s largest mammal should never be hunted again.
READ MORE

NOAA’s New Chief on Restoring<br /> Science to U.S. Climate Policy

Interview

NOAA’s New Chief on Restoring
Science to U.S. Climate Policy

by elizabeth kolbert
Marine biologist Jane Lubchenco now heads one of the U.S. government’s key agencies researching climate change — the National Oceanic and Atmospheric Administration. In an interview with Yale Environment 360, Lubchenco discusses the central role her agency is playing in understanding the twin threats of global warming and ocean acidification.
READ MORE

Twenty Years Later, Impacts<br />  of the Exxon Valdez Linger

Report

Twenty Years Later, Impacts
of the Exxon Valdez Linger

by doug struck
Two decades after the Exxon Valdez spilled 11 million gallons of crude oil into Alaska’s waters, the Prince William Sound, its fishermen, and its wildlife have still not fully recovered.
READ MORE

Opinion

A Call for Tougher Standards
on Mercury Levels in Fish

by jane hightower
In response to industry pressure, the U.S. Food and Drug Administration has failed to set adequate restrictions on mercury levels in fish. Now the Obama administration must move forcefully to tighten those standards and warn the public which fish are less safe to eat.
READ MORE

Regulators Are Pushing<br /> Bluefin Tuna to the Brink

Opinion

Regulators Are Pushing
Bluefin Tuna to the Brink

by carl safina
The international commission charged with protecting the giant bluefin tuna is once again failing to do its job. Its recent decision to ignore scientists’ recommendations for reducing catch limits may spell doom for this magnificent – and endangered – fish.
READ MORE

A Corporate Approach to <br />Rescuing the World’s Fisheries

Report

A Corporate Approach to
Rescuing the World’s Fisheries

by nicholas day
The commitment by Wal-Mart, McDonald’s, and other major companies to buy only sustainably-caught seafood is an encouraging sign in an otherwise bleak global fisheries picture. After decades of government inaction and ineffective consumer campaigns, corporate pressure may finally be starting to turn the tide on reckless overfishing.
READ MORE

Alaska’s Pebble Mine:<br /> Fish Versus Gold

Report

Alaska’s Pebble Mine:
Fish Versus Gold

by bill sherwonit
With the support of Gov. Sarah Palin, mining interests have defeated an Alaska ballot measure that could have blocked a huge proposed mining project. Now, plans are moving forward to exploit the massive gold and copper deposit at Bristol Bay, home of one of the world’s greatest salmon runs.
READ MORE

The Arctic Resource Rush is On

Report

The Arctic Resource Rush is On

by ed struzik
As the Arctic's sea ice melts, energy and mining companies are moving into previously inaccessible regions to tap the abundant riches that lie beneath the permafrost and the ocean floor. The potential environmental impacts are troubling.
READ MORE

Analysis

Carbon’s Burden on the World’s Oceans

by carl safina and marah j. hardt
The burgeoning amount of carbon dioxide in oceans is affecting a lot more than coral reefs. It is also damaging marine life and, most ominously, threatening the future survival of marine populations.
READ MORE

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RELATED e360 DIGEST ITEMS


03 May 2016: A Sea Urchin's Mouth Could
Make it Easier to Study Distant Planets

Sea urchins have long inspired awe among scientists for their ability to chew through almost anything, from entire kelp forests to rocks. Their mouths — comprised of a ring of intricate muscles and five curved, pointed teeth —

UC San Diego
operate like a giant claw in an arcade game. Now scientists have designed a new space-exploration device based on the urchins’ teeth that will make it easier to collect sediment samples on other planets, like Mars. “Our goal was a bio-inspired device that's more precise and efficient at grabbing ground samples, and won't disturb the surrounding area like a shovel" — the tool space vehicles like the Mars rovers currently use, said Michael Frank, an engineer at the University of California, San Diego. The technology, based on 3D scans of pink sea urchins, has five claws with beveled edges that gather and trap material in a smooth, quick motion.
PERMALINK

 

28 Apr 2016: Half of All Farmed Fish Have
Deformed Ear Bones That Cause Hearing Loss

Farmed fish have become an increasingly larger share of the world’s seafood market in recent decades—now accounting for 50 percent of global seafood consumption.

USFWS
At the same time, however, debate about the ethics, safety and health of farmed fish versus their wild counterparts has also intensified. A new study published in the journal Nature Scientific Reports finds that half of all farmed Atlantic salmon have deformed ear bones that lead to hearing loss. These salmon are 10 times more likely to have the deformity than wild fish. The findings “raise questions about the welfare of farmed animals," said Tim Dempster, a biologist at the University of Melbourne involved in the study. It may also explain why efforts to boost wild populations by releasing farmed juveniles have proven unsuccessful. Hearing loss would prevent farmed fish from detecting predators, or restrict their ability to navigate to breeding sites, the scientists said.
PERMALINK

 

From Mass Coral Bleaching,
A Scientist Looks for Lessons

Twice a year, Georgia Tech climate scientist Kim Cobb travels to Christmas Island in the middle of the Pacific Ocean to collect samples from coral reefs to better understand past and future climate change.
Kim Cobb

Kim Cobb
But when Cobb arrived on the island earlier this month, she was stunned. The corals she had spent the past 18 years studying were largely dead or dying. The scene has become a familiar one across the Pacific and Indian oceans this year as a record-breaking El Niño drove up water temperatures and caused fragile coral reef systems to bleach from stress or die. In an interview with Yale Environment 360, Cobb talked about the recent bleaching event, the race to make reefs more resilient, and how coral records could improve short-term climate projections. “What you think reefs might be experiencing in 20 years,” she says, “they're experiencing now.”
Read the interview.
PERMALINK

 

20 Apr 2016: Entries Invited for Third
Annual Yale Environment 360 Video Contest

The third annual Yale Environment 360 Video Contest is now accepting entries. The contest honors the year's best environmental videos. Submissions must focus on an environmental issue or theme, have not been widely viewed online, and be a maximum of 15 minutes in length. Videos that are funded by an organization or company and are primarily about that organization or company are not eligible. The first-place winner will receive $2,000, and two runners-up will each receive $500. The winning entries will be posted on Yale Environment 360. The contest judges will be Yale Environment 360 editor Roger Cohn, New Yorker writer and e360 contributor Elizabeth Kolbert, and documentary filmmaker Thomas Lennon. Deadline for entries is June 10, 2016.
Read More.
PERMALINK

 

12 Apr 2016: Scientists Reimagine The
Tree of Life With New Microbe Knowledge

Following years of intense exploration and research into the microbial world, scientists have reimagined the tree of life—the iconic visual representation of the living world first proposed by Charles Darwin in 1859.

Banfield/UC Berkeley
The new tree of life.
The project was led by researchers at the University of California, Berkeley, who over the last decade have been gathering DNA from across the globe—from everywhere from meadow soils and river mud to deep sea vents—to reconstruct genomes and describe thousands of new microbial species. Curious how their findings fit into the tree of life, the scientists used a supercomputer to visualize how more than 3,000 new and known species related to one another. They discovered that eukaryotes, the group that includes humans, exist on a thin twig compared to the microbial branch of the tree. “The tree of life as we know it has dramatically expanded due to new genomic sampling of previously enigmatic or unknown microbial lineages,” the authors wrote.
PERMALINK

 

11 Apr 2016: More Than 50 Percent of
Great Barrier Reef Affected By Bleaching

Record high ocean temperatures in the western Pacific have caused more than half of the Great Barrier Reef to undergo a mass coral bleaching event this year, according to a team of Australian scientists conducting aerial surveys.

ARC Coral Reef Studies
An aerial shot of the Great Barrier Reef in early April.
Corals thrive in a narrow temperature range, and when waters warm above normal—as they have this year from climate change and a strong El Nino—the organisms expel their symbiotic algae, leaving them without a source of food and susceptible to disease. Scientists’ next step is studying the corals up close to determine how deep the bleaching is, said Terry Hughes, a marine biologist at James Cook University and head of the Australian coral bleaching task force. “If the corals are severely bleached, then a lot will die,” Hughes said. “If they are lightly bleached, which is the case with a lot of reefs south of Townsville, then they’ll regain their color over the next couple of months and there won’t be much mortality.”
PERMALINK

 

05 Apr 2016: El Nino Prevents Phytoplankton
Growth, Endangering Marine Food Web

El Nino—the cyclical warming of the Pacific Ocean—has wreaked havoc on the world’s weather for the past two years, from a record-breaking number of cyclones in the North Pacific to flooding in South America.

Uz/NASA Goddard
Satellite images of phytoplankton growth.
But scientists at NASA recently discovered that the climate phenomenon also has a big impact on phytoplankton, the tiny oceanic organisms that serve as the base of the marine food chain. Normally, ocean currents drive cold, deep water to the surface near the equator, bringing with it a flood of nutrients that feed phytoplankton. El Nino’s mass of warm water stops this upwelling. The result is a marked drop in phytoplankton levels. “This decline echoes through many species,” said Stephanie Uz, an ocean scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland who led the study. “Small fish that feed on phytoplankton starve. This affects everything from penguin and iguana populations in the Galapagos to governments managing fisheries.”
PERMALINK

 

31 Mar 2016: A New, Multi-Colored Way To
Study Cell Regeneration in Zebrafish

Zebrafish have amazing healing capabilities—they can grow back missing limbs and patch an injured heart or spine—but scientists have long been in the dark as to how exactly this process works.

Chen-Hui Chen, Duke University
An engineered zebrafish with multi-colored skin.
Now, a team of scientists at Duke University engineered neurons to create a zebrafish with skin that fluoresces in thousands of colors in order to visually illustrate how cells regenerate after injury. They found there are three steps to the process: skin cells from neighboring body parts migrate in to cover the new tissue, surviving cells grow in size, and new cells are created. “It is like you have given each cell an individual barcode,” said Chen-Hui Chen, a postdoctoral fellow at Duke and lead author on the study. “You can precisely see how individual cells collectively behave during regeneration.”
PERMALINK

 

Interview: How Ocean Noise
Wreaks Havoc on Marine Life

Bowing to public pressure, the Obama administration recently reversed an earlier decision to allow oil drilling off the U.S. East Coast. But the five-year moratorium on drilling does not prohibit exploratory seismic air gun surveys
Christopher Clark

Christopher Clark
used to locate oil and gas reserves under the seabed, and those surveys are expected to be authorized this spring. Cornell University marine bioacoustics expert Christopher Clark says the testing, which can go on for weeks at a time, will only add to the rising din in the oceans. “Imagine that every 10 seconds there is an explosion that is rattling grandma’s china out of the cupboard,” he says, “and it is falling on the floor.” In an interview with Yale Environment 360, Clark explains how noise, most of it from ship traffic, severely disrupts marine life, especially among whales. But the good news, he says, is that technologies are being developed to drastically reduce the noise from ships and geological surveying.
Read the interview.
PERMALINK

 

24 Mar 2016: A Fish With a Pelvis: Another
Clue Into Our Sea-to-Land Evolution

Biologists have long wondered exactly how fish emerged from the sea and transitioned into vertebrates that could walk on land. To date, most of the information on that shift has come from fossils,

D.S.
A waterfall-climbing fish.
but scientists reported Thursday they have found that a species of fish located only deep in the caves of Thailand walks the same way land vertebrates do. The blind waterfall-climbing fish, Cryptotora thamicola, first discovered in 1985, has skeletal features similar to a salamander—including a fully formed pelvis—that enable them to climb up rock walls and feed on microbes and organic matter as water comes crashing down on them, the researchers wrote in Nature Scientific Reports. “Functionally, it makes perfect sense, but to see it in a fish is incredibly wild,” said Brooke Flammang, an expert on biomechanics at the New Jersey Institute of Technology and lead author of the study. The discovery could help more fully explain how life evolved from the sea to land.
PERMALINK

 

23 Mar 2016: Microbes Are Likely Speeding
Up the Melting of the Glaciers

As if soaring global temperatures weren’t bad enough, scientists reported this week that microbes are also speeding up the melting of Arctic ice.

National Parks Service
A pool of meltwater on the Root Glacier in Alaska.
The problem lies in cryoconite, the soil-like composite of dust, industrial soot and photosynthetic bacteria that darkens the surface of ice and causes it to melt, scientists from Aberystwyth University in Wales said. As it melts, ice leaves behind small water-filled holes full of bacteria. The sun-loving microbes then shape the pockmarks’ depth and size to get more light exposure, in turn melting the ice even more—a process previously unaccounted for in global climate change models. "It's only recently that we've begun to understand that these cryoconite holes are dynamic, changing in size and shape,” said biologist Arwyn Edwards, who led the study. "In the long term, this contributes to the loss of glacier habitats, and the unique microbial biodiversity living on them."
PERMALINK

 

22 Mar 2016: Old Photos Used to Study
The Fate of a Swedish Seabird Colony

Nearly 100 years of old tourist photos got a second life recently when researchers used them to reconstruct the rise and fall of a colony of seabirds on the Swedish island of Stora Karlsö. The island, designated a nature preserve in 1880 and a popular tourist destination since the 1920s, hosts a large population of common guillemots, one of the biggest species of auks. Ecologists Jonas Hentati-Sundberg and Olof Olsson of Stockholm University spent five years collecting images of the island from archives, museums, and island visitors in order to count guillemot numbers decade-to-decade. They found that the colony declined in the 1960s and 70s, when contaminants like DDT and PCB were prevalent, but has since rebounded to historically high numbers today, possibly because of an increase in the numbers of forage fish consumed by guillemots. “The population is currently increasing at an unprecedented rate of about 5 percent annually," said Hentati-Sundberg. "This is interesting in that many common guillemot populations are decreasing worldwide."
PERMALINK

 

15 Mar 2016: Obama Administration Pulls
Proposal to Drill in the Atlantic Ocean

The Obama administration withdrew its proposal to open up offshore oil and gas drilling in the Atlantic Ocean on Tuesday.

Chad Teer/Flickr
Offshore drilling rigs in the Gulf of Mexico.
The decision blocks drilling in the region until 2022 and comes after an outpouring of opposition to the plan from environmental groups and mid-Atlantic coastal communities and businesses concerned about a possible spill like Deepwater Horizon in the Gulf of Mexico five years ago. “Public pressure forced the administration to reverse course on Atlantic drilling," May Boeve, executive director of the environmental group 350.org, said in a statement. “We will continue to make the case that any new drilling is a stain on the president’s climate legacy and incompatible with the goals he committed to at the climate talks in Paris.”
PERMALINK

 

14 Mar 2016: Sea Level Rise Could Put
13.1 Million Americans At Risk of Flooding

Climate change and sea level rise could put 13.1 million Americans at risk of flooding by 2100, according to a new study in the journal Nature Climate Change.

FEMA
Flooding in Davie, Florida
Nearly half of the at-risk population resides in Florida, and 70 percent in the southeastern United States. Unlike previous assessments that looked only at sea level rise, the study examines both climate and population projections for all 319 coastal U.S. counties over the next century. Three feet of sea level rise puts 4.2 million Americans at risk. Six feet—the high end of estimates by the National Oceanic and Atmospheric Administration—puts 13.1 million at risk. “The impact projections are up to three times larger than current estimates, which significantly underestimate the effect of sea level rise in the United States,” said Mathew Hauer, lead author of the study and a demographer at the University of Georgia.
PERMALINK

 

01 Mar 2016: Despite El Nino, California
Has Dry February As Drought Continues

El Nino failed to deliver much needed rain to California in February, dashing hopes that the climatic phenomenon could help end the state’s crippling four-year, multi-billion-dollar drought.

USDA/NOAA
Ninety-four percent of California is in drought.
Downtown Los Angeles received only .79 inches of rain last month, when it typically gets 3.8 inches. The Bay Area got similarly low totals. "From past six strong El Ninos, we have generally seen above normal rainfall,” said Robbie Munroe, a meteorologist for the National Weather Service. “But since October 1 we've only seen five inches of rain so far (across Southern California). We were certainly expecting a lot more." Meteorologists say a series of forecasted storms in early March could help, but with El Nino reportedly weakening and about 94 percent of California still in some form of drought, things aren’t looking good for the region.
PERMALINK

 

24 Feb 2016: Extended Bleaching Events
Are Killing Corals As Oceans Warm

Rising ocean temperatures are intensifying the die-off of corals around the planet, according to U.S. government scientists. “We are currently experiencing

Bleached coral at the Great Barrier Reef
the longest global coral-bleaching event ever observed,” said Mark Eakin, head of Coral Reef Watch at the National Oceanic and Atmospheric Administration. Bleaching occurs when corals respond to environmental hazards, such as high ocean temperatures, by expelling the symbiotic algae they need to provide them with sustenance. Eakin predicted that the latest extended bleaching event, which started in 2014, will likely last well into next year, at which time about 60 percent of corals worldwide may be affected. Eakin compares the continuous pressure that reefs have been under in recent years to a boxing bout. “What used to be a one-round fight is turning into a two- and three-round fight,” he says.
PERMALINK

 

05 Feb 2016: Rising Temperatures Skewing
Gender Balance of Sea Turtles, Study Says

Rising global temperatures may be skewing the gender makeup of marine turtles, according to

Loggerhead sea turtle
new research from Florida State University. The gender of marine hatchlings is influenced by the temperature of the sands in which they incubate, with warmer temperatures producing more females. “It's worrying that you could have an extreme skew in gender one way," said Mariana Fuentes, an assistant professor of oceanography at FSU. "Any changes in population structure can have real repercussions.” The scientists examined 25 years worth of data for 21 loggerhead turtle nesting beaches along the Brazilian coast, but the results are pertinent to other regions since temperature-dependent sex determination affects all turtles.
PERMALINK

 

01 Feb 2016: Lab-raised Caribbean Coral
Grown in the Wild for the First Time

Caribbean coral colonies bred in a lab, using in-vitro fertilization, have for the first time been raised to sexual maturity in their

Elkhorn coral
natural marine habitat, according to findings published in the Bulletin of Marine Science. Offspring of endangered elkhorn coral were reared from gametes collected in the field and successfully reattached to a reef a year later, where they have grown in size considerably according to researchers from SECORE International. Over the past four decades, an estimated 80 percent of all Caribbean corals have disappeared. The elkhorn coral’s decline is so severe that it was the first coral species to be listed as threatened under the U.S. Endangered Species Act in 2006. Due to its large size, branching shape, and preference for shallow waters, the coral is particularly effective at protecting shorelines from incoming storms, as well as providing a critical habitat for many reef organisms. Scientists hope this success will be an important step in helping restore endangered reefs.
PERMALINK

 

19 Jan 2016: Ocean Absorption of Manmade
Heat Doubles Since 1997, Study Says

The amount of manmade heat absorbed by the world’s oceans has doubled since 1997, according to a study

Carbon dioxide in the atmosphere
released yesterday in the journal Nature Climate Change. Scientists have long known that the oceans absorb more than 90 percent of manmade heat, but the study’s figures give a new and more accurate accounting for that process over a period of 150 years. According to the study, the oceans absorbed 150 zettajoules of energy between 1865 and 1997 — and an additional 150 zettajoules in just the past 18 years. “The changes we’re talking about, they are really, really big numbers,” said co-author Paul Durack, an oceanographer at the Lawrence Livermore National Lab in California. “They are nonhuman numbers.” Put in perspective, the amount of energy absorbed by the oceans since 1997 is the equivalent to a Hiroshima-sized bomb being exploded every second for 75 years.
PERMALINK

 

15 Jan 2016: Northeast U.S. Waters Warming
Faster than Previously Thought, NOAA says

The ocean waters off the Northeastern United States may get even warmer, and this warming may occur twice as quickly as previously thought,

The Gulf of Maine is warming rapidly
according to a new study by researchers for the National Oceanic and Atmospheric Administration. The findings, based on four global climate models, suggest that ocean temperatures in that region will rise three times faster than the global average. “Prior climate change projections for the region may be far too conservative,” said Vincent Saba, a NOAA fisheries scientist and lead author of the study. The Gulf of Maine has warmed faster than nearly 100 percent of the world’s oceans, likely due to a northerly shift in the Gulf Stream. Scientists have been studying the warming’s impact on the area’s marine ecosystem.
PERMALINK

 

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e360 VIDEO

Colorado wildfires
An e360 video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate.
Watch the video.

e360 SPECIAL REPORT

“Tainted
A three-part series Tainted Harvest looks at the soil pollution crisis in China, the threat it poses to the food supply, and the complexity of any cleanup.
Read the series.

OF INTEREST



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