Topic: Sustainability


Blocked Migration: Fish Ladders<br /> On U.S. Dams Are Not Effective

Analysis

Blocked Migration: Fish Ladders
On U.S. Dams Are Not Effective

by john waldman
Fishways on rivers in the U.S. Northeast are failing, with less than 3 percent of one key species making it upriver to their spawning grounds, according to a new study. The researchers’ findings provide a cautionary tale for other nations now planning big dam projects.
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Can a Divestment Campaign<br /> Move the Fossil Fuel Industry?

Report

Can a Divestment Campaign
Move the Fossil Fuel Industry?

by brooke jarvis
U.S. climate activists have launched a movement to persuade universities, cities, and other groups to sell off their investments in fossil fuel companies. But while the financial impact of such divestment may be limited, the campaign could harm the companies in a critical sphere — public opinion.
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Biodiversity in Logged Forests<br /> Far Higher Than Once Believed

Analysis

Biodiversity in Logged Forests
Far Higher Than Once Believed

by fred pearce
New research shows that scientists have significantly overestimated the damage that logging in tropical forests has done to biodiversity, a finding that could change the way conservationists think about how best to preserve species in areas disturbed by humans.
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Boom in Mining Rare Earths<br /> Poses Mounting Toxic Risks

Report

Boom in Mining Rare Earths
Poses Mounting Toxic Risks

by mike ives
The mining of rare earth metals, used in everything from smart phones to wind turbines, has long been dominated by China. But as mining of these key elements spreads to countries like Malaysia and Brazil, scientists warn of the dangers of the toxic and radioactive waste generated by the mines and processing plants.
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Should Environmentalists<br /> Just Say No to Eating Beef?

Report

Should Environmentalists
Just Say No to Eating Beef?

by marc gunther
Conservation organizations are working with industry to try to make beef production more sustainable. But some are questioning whether green groups should be accepting funds from the beef industry or whether they should instead be urging consumers to stop eating beef.
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A Global Treaty on Rivers:<br /> Key to True Water Security

Analysis

A Global Treaty on Rivers:
Key to True Water Security

by fred pearce
No broad-based international agreement on sharing rivers currently exists, even though much of the world depends on water from rivers that flow through more than one nation. But that may be about to change, as two separate global river treaties are close to being approved.
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What’s Wrong with<br /> Putting a Price on Nature?

Analysis

What’s Wrong with
Putting a Price on Nature?

by richard conniff
The concept of pricing ecosystem services and allowing them to be bought and sold has gained wide acceptance among conservationists in recent years. But does this approach merely obscure nature’s true value and put the natural world at even greater risk?
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Beyond Big Dams: Turning to<br /> Grass Roots Solutions on Water

Report

Beyond Big Dams: Turning to
Grass Roots Solutions on Water

by fred pearce
Mega-dams and massive government-run irrigation projects are not the key to meeting world’s water needs, a growing number of experts now say. For developing nations, the answer may lie in small-scale measures such as inexpensive water pumps and other readily available equipment.
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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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Melting Glaciers May Worsen<br/> Northwest China’s Water Woes

Report

Melting Glaciers May Worsen
Northwest China’s Water Woes

by mike ives
In China’s sprawling Xinjiang region, where the population is growing and cotton farming is booming, a key river has been running dry in summer. Now a team of international scientists is grappling with a problem facing the Tarim River basin and other mountainous regions — how to secure water supplies as demands increase and glaciers melt.
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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 Dead Sea is Dying: Can<br /> A Controversial Plan Save It?

Report

The Dead Sea is Dying: Can
A Controversial Plan Save It?

by dave levitan
The Dead Sea — the lowest terrestrial point on the planet — is dropping at an alarming rate, falling more than 1 meter a year. A $10 billion proposal to pipe water from the Red Sea is being opposed by conservationists, who point to alternatives that could help save one of the world’s great natural places.
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Helping U.S. Farmers Increase<br /> Production and Protect the Land

Analysis

Helping U.S. Farmers Increase
Production and Protect the Land

by julie menter
American agriculture is steeped in a chemical-intensive system that wastes money and pollutes the environment. But by making use of new technology and innovative approaches, farmers can boost production and profits — while at the same time improving soil quality, enhancing biodiversity, and protecting habitat.
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Global Scarcity: Scramble for<br /> Dwindling Natural Resources

Interview

Global Scarcity: Scramble for
Dwindling Natural Resources

by diane toomey
National security expert Michael Klare believes the struggle for the world’s resources will be one of the defining political and environmental realities of the 21st century. In an interview with Yale Environment 360, he discusses the threat this scramble poses to the natural world and what can be done to sustainably meet the resource challenge.
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The Folly of Big Agriculture:<br /> Why Nature Always Wins

Opinion

The Folly of Big Agriculture:
Why Nature Always Wins

by verlyn klinkenborg
Large-scale industrial agriculture depends on engineering the land to ensure the absence of natural diversity. But as the recent emergence of herbicide-tolerant weeds on U.S. farms has shown, nature ultimately finds a way to subvert uniformity and assert itself.
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Digital Defenders: Tribal People<br /> Use GPS to Protect Their Lands

Report

Digital Defenders: Tribal People
Use GPS to Protect Their Lands

by fred pearce
From the rainforests of central Africa to the Australian outback, indigenous people armed with GPS devices are surveying their territories and producing maps they can use to protect them from logging and other outside development.
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Amory Lovins Lays Out<br /> His Clean Energy Plan

Interview

Amory Lovins Lays Out
His Clean Energy Plan

by fen montaigne
For four decades, Amory Lovins has been a leading proponent of a renewable power revolution that would wean the U.S. off fossil fuels and usher in an era of energy independence. In an interview with Yale Environment 360, he talks about his latest book, which describes his vision of how the world can attain a green energy future by 2050.
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Busting the Forest Myths:<br /> People as Part of the Solution

Analysis

Busting the Forest Myths:
People as Part of the Solution

by fred pearce
The long-held contention that rural forest communities are the prime culprits in tropical forest destruction is increasingly being discredited, as evidence mounts that the best way to protect rainforests is to involve local residents in sustainable management.
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Building a Better Bulb:<br /> Lighting Revolution Advances

Report

Building a Better Bulb:
Lighting Revolution Advances

by dave levitan
With the industry’s support and despite political opposition, new U.S. lighting efficiency standards went into effect this month. This move, along with similar actions in Europe and China, is helping spur new technologies that will change the way the world's homes and businesses are illuminated.
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Putting a Price on<br /> The Real Value of Nature

Interview

Putting a Price on
The Real Value of Nature

by roger cohn
Indian banker Pavan Sukhdev has been grappling with the question of how to place a monetary value on nature. In an interview with Yale Environment 360, he discusses the ways natural ecosystems benefit people and why policymakers and businesses must rethink how they assess environmental costs and benefits.
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Can ‘Climate-Smart’ Agriculture<br /> Help Both Africa and the Planet?

Report

Can ‘Climate-Smart’ Agriculture
Help Both Africa and the Planet?

by fred pearce
One idea promoted at the Durban talks was “climate-smart agriculture," which could make crops less vulnerable to heat and drought and turn depleted soils into carbon sinks. The World Bank and African leaders are backing this new approach, but some critics are skeptical that it will benefit small-scale African farmers.
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Sweden’s Green Veneer Hides<br /> Unsustainable Logging Practices

Report

Sweden’s Green Veneer Hides
Unsustainable Logging Practices

by erik hoffner
Sweden has a reputation as being one of the world’s most environmentally progressive nations. But its surprisingly lax forestry laws often leave decisions about logging to the timber companies — and as a result, large swaths of biologically-rich boreal forest are being lost.
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The New Story of Stuff:<br /> Can We Consume Less?

Analysis

The New Story of Stuff:
Can We Consume Less?

by fred pearce
A new study finds that Britons are consuming less than they did a decade ago, with similar patterns being seen across Europe. Could this be the beginning of a trend in developed countries? Might we be reaching “peak stuff”?
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China’s Appetite for Wood<br /> Takes a Heavy Toll on Forests

Analysis

China’s Appetite for Wood
Takes a Heavy Toll on Forests

by william laurance
More than half of the timber now shipped globally is destined for China. But unscrupulous Chinese companies are importing huge amounts of illegally harvested wood, prompting conservation groups to step up boycotts against rapacious timber interests.
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A Power Company President<br /> Ties His Future to Green Energy

Interview

A Power Company President
Ties His Future to Green Energy

David Crane, the CEO of one of the nation’s largest electric companies, has become a leading proponent of renewable energy. In an interview with Yale Environment 360, he explains how, in the face of government paralysis, the private sector can help lead the shift away from fossil fuels.
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Building Retrofits: Tapping<br /> The Energy-Saving Potential

Report

Building Retrofits: Tapping
The Energy-Saving Potential

by david biello
No more cost-effective way to make major cuts in energy use and greenhouse gas emissions exists than retrofitting buildings. Now, from New York to Mumbai to Melbourne, a push is on to overhaul older buildings to make them more energy efficient.
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What If Experts Are Wrong<br /> On World Population Growth?

Analysis

What If Experts Are Wrong
On World Population Growth?

by carl haub
A central tenet of demography is that global population will peak at 9 to 10 billion this century and then gradually decline as poorer countries develop. But that assumption may be overly optimistic — and if it is, population will continue to rise, placing enormous strains on the environment.
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The World at 7 Billion:<br /> Can We Stop Growing Now?

Opinion

The World at 7 Billion:
Can We Stop Growing Now?

by robert engelman
With global population expected to surpass 7 billion people this year, the staggering impact on an overtaxed planet is becoming more and more evident. A two-pronged response is imperative: empower women to make their own decisions on childbearing and rein in our excessive consumption of resources.
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In Brazil, Palm Oil Plantations<br /> Could Help Preserve the Amazon

Analysis

In Brazil, Palm Oil Plantations
Could Help Preserve the Amazon

by rhett butler
In recent years, palm oil development in Malaysia and Indonesia has devastated tropical forests there. With Brazil on the verge of its own palm oil boom, can sustainable cultivation of the crop actually help save the rainforest, rather than hastening its destruction?
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Off the Pedestal: Creating a<br /> New Vision of Economic Growth

Opinion

Off the Pedestal: Creating a
New Vision of Economic Growth

by james gustave speth
The idea of economic growth as an unquestioned force for good is ingrained in the American psyche. But a longtime environmental leader argues it’s time for the U.S. to reinvent its economy into one that focuses on sustaining communities, family life, and the natural world.
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Green Failure: What’s Wrong<br /> With Environmental Education?

Interview

Green Failure: What’s Wrong
With Environmental Education?

by michelle nijhuis
Marine conservationist Charles Saylan believes the U.S. educational system is failing to create responsible citizens who consider themselves stewards of the environment. To do that, he says in a Yale Environment 360 interview, educators need to go beyond rhetoric and make environmental values a central part of a public education.
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Africa’s Flourishing Niger Delta<br /> Threatened by Libya Water Plan

Report

Africa’s Flourishing Niger Delta
Threatened by Libya Water Plan

by fred pearce
The inland Niger delta of Mali is a unique wetland ecosystem that supports a million farmers, fishermen, and herders and a rich diversity of wildlife. But now, the country’s president and Libyan leader Moammar Gaddafi have begun a major agricultural project that will divert much of the river’s water and put the delta’s future at risk.
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China Turns to Biogas to<br /> Ease Impact of Factory Farms

Report

China Turns to Biogas to
Ease Impact of Factory Farms

by eliza barclay
In China, millions of tons of waste from livestock farms are causing severe water pollution and massive emissions of methane. Now, some large livestock operators are turning to biogas fuel production in hopes of creating “ecological” factory farms.
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A Symbolic Solar Road Trip <br />To Reignite a Climate Movement

Opinion

A Symbolic Solar Road Trip
To Reignite a Climate Movement

by bill mckibben
An activist caravan to bring one of Jimmy Carter’s solar panels back to the White House symbolizes the time that the U.S. has lost in developing new energy technologies – and the urgent need for taking action on climate.
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Will REDD Preserve Forests <br />Or Merely Provide a Fig Leaf?

Analysis

Will REDD Preserve Forests
Or Merely Provide a Fig Leaf?

by fred pearce
The tropical forest conservation plan, known as REDD, has the potential to significantly reduce deforestation and carbon dioxide emissions worldwide. But unless projects are carefully designed and monitored, the program could be undercut by shady dealings at all levels, from the forests to global carbon markets.
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Eyeing the Difficult Path<br /> To a Sustainable Future

Interview

Eyeing the Difficult Path
To a Sustainable Future

Environmentalist David Orr says the easy part of helping the United States live within its ecological limits may be passing laws, such as one that puts a price on carbon. The hard part, he maintains in an interview with Yale Environment 360, is changing a culture of consumption that causes extensive environmental damage — and unhappiness.
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The Anthropocene Debate: <br /> Marking Humanity’s Impact

Analysis

The Anthropocene Debate:
Marking Humanity’s Impact

by elizabeth kolbert
Is human activity altering the planet on a scale comparable to major geological events of the past? Scientists are now considering whether to officially designate a new geological epoch to reflect the changes that homo sapiens have wrought: the Anthropocene.
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Out of the Demographic Trap:<br /> Hope for Feeding the World

Opinion

Out of the Demographic Trap:
Hope for Feeding the World

by fred pearce
In Africa and elsewhere, burgeoning population growth threatens to overwhelm already over-stretched food supply systems. But the next agricultural revolution needs to get local — and must start to see rising populations as potentially part of the solution.
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Stewart Brand’s Strange Trip:<br /> Whole Earth to Nuclear Power

Interview

Stewart Brand’s Strange Trip:
Whole Earth to Nuclear Power

by todd woody
When the founder of the Whole Earth Catalog embraces nuclear power, genetically engineered crops, and geoengineering schemes to cool the planet, you know things have changed in the environmental movement. In an interview with Yale Environment 360, Stewart Brand explains how the passage of four decades — and the advent of global warming — have shifted his thinking about what it means to be green.
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The Greenest Place in the U.S.<br /> May Not Be Where You Think

Opinion

The Greenest Place in the U.S.
May Not Be Where You Think

by david owen
Green rankings in the U.S. don’t tell the full story about the places where the human footprint is lightest. If you really want the best environmental model, you need to look at the nation’s biggest — and greenest — metropolis: New York City.
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The <em>Other</em> Inconvenient Truth:<br /> The Crisis in Global Land Use

Opinion

The Other Inconvenient Truth:
The Crisis in Global Land Use

by jonathan foley
As the international community focuses on climate change as the great challenge of our era, it is ignoring another looming problem — the global crisis in land use. With agricultural practices already causing massive ecological impact, the world must now find new ways to feed its burgeoning population and launch a "Greener" Revolution.
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What Makes Europe<br /> Greener than the U.S.?

Opinion

What Makes Europe
Greener than the U.S.?

by elisabeth rosenthal
The average American produces three times the amount of CO2 emissions as a person in France. A U.S. journalist now living in Europe explains how she learned to love her clothesline and sweating in summer.
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Green Intelligence: Toward<br /> True Ecological Transparency

Analysis

Green Intelligence: Toward
True Ecological Transparency

by daniel goleman
Wal-Mart’s push to develop a sustainability index for the products it carries could prove to be a pivotal moment in the effort to make consumers aware of the environmental impacts of what they buy.
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Reconnecting with Nature<br /> Through Green Architecture

Interview

Reconnecting with Nature
Through Green Architecture

by richard conniff
Stephen Kellert, a social ecologist, is a passionate advocate for the need to incorporate aspects of the natural world into our built environment. In an interview with Yale Environment 360, he explains what we can learn from cathedrals, why flowers in a hospital can heal, and how green design can boost a business’s bottom line.audio
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Adaptation Emerges as Key<br /> Part of Any Climate Change Plan

Report

Adaptation Emerges as Key
Part of Any Climate Change Plan

by bruce stutz
After years of reluctance, scientists and governments are now looking to adaptation measures as critical for confronting the consequences of climate change. And increasingly, plans are being developed to deal with rising seas, water shortages, spreading diseases, and other realities of a warming world.
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A Potential Breakthrough<br /> in Harnessing the Sun’s Energy

Report

A Potential Breakthrough
in Harnessing the Sun’s Energy

by david biello
New solar thermal technology overcomes a major challenge facing solar power – how to store the sun’s heat for use at night or on a rainy day. As researchers tout its promise, solar thermal plants are under construction or planned from Spain to Australia to the American Southwest.
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Analysis

Using Peer Pressure as a Tool
to Promote Greener Choices

by richard conniff
Environmentalists, utilities, and green businesses are turning to behavioral economics to find innovative ways of influencing people to do the right thing when it comes to the environment. Is this approach really good for the planet or just a fad?
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Consumption Dwarfs Population <br />as Main Environmental Threat

Opinion

Consumption Dwarfs Population
as Main Environmental Threat

by fred pearce
It's overconsumption, not population growth, that is the fundamental problem: By almost any measure, a small portion of the world's people — those in the affluent, developed world — use up most of the Earth's resources and produce most of its greenhouse gas emissions.
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Food Industry Pursues the Strategy of Big Tobacco

Interview

Food Industry Pursues the Strategy of Big Tobacco

Kelly Brownell has long studied the relationship between rising levels of obesity in the U.S. and the way our food is grown, processed, packaged, and sold. In an interview with Yale Environment 360, he discusses the common marketing and lobbying tactics employed by the food and tobacco industries.audio
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China’s Grand Plans for <br/>Eco-Cities Now Lie Abandoned

Report

China’s Grand Plans for
Eco-Cities Now Lie Abandoned

by christina larson
Mostly conceived by international architects, China’s eco-cities were intended to be models of green urban design. But the planning was done with little awareness of how local people lived, and the much-touted projects have largely been scrapped.
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Pursuing the Elusive Goal<br />  of a Carbon-Neutral Building

Analysis

Pursuing the Elusive Goal
of a Carbon-Neutral Building

by richard conniff
Yale University’s recently opened Kroon Hall is a state-of-the-art model of where the green building movement is headed. Yet even this showcase for renewable energy highlights the difficulties of creating a building that is 100 percent carbon neutral.
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The New Urbanists: <br />Tackling Europe’s Sprawl

Analysis

The New Urbanists:
Tackling Europe’s Sprawl

by bruce stutz
In the last few decades, urban sprawl, once regarded as largely a U.S. phenomenon, has spread across Europe. Now an emerging group of planners is promoting a new kind of development — mixed-use, low-carbon communities that are pedestrian-friendly and mass-transit-oriented.
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Environmental Failure: <br/> A Case for a New Green Politics

Opinion

Environmental Failure:
A Case for a New Green Politics

by james gustave speth
The U.S. environmental movement is failing – by any measure, the state of the earth has never been more dire. What’s needed, a leading environmentalist writes, is a new, inclusive green politics that challenges basic assumptions about consumerism and unlimited growth.
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Green Strategies Spur <br />Rebirth of American Cities

Analysis

Green Strategies Spur
Rebirth of American Cities

by keith schneider
U.S. cities have been using green planning to spark economic development, helping create a real urban renaissance in America. With a new administration soon to arrive in Washington, these same approaches may finally start being used on a national scale.
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Thomas Friedman: Hope in a Hot, Flat and Crowded World

Interview

Thomas Friedman: Hope in a Hot, Flat and Crowded World

by elizabeth kolbert
In an exclusive interview with Yale Environment 360, best-selling author Thomas Friedman talks with Elizabeth Kolbert about his new book and about why he’s optimistic that an energy-technology revolution can revitalize the United States and set the world on a new, greener path. audio
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Saving the Seeds of the<br /> Next Green Revolution

Analysis

Saving the Seeds of the
Next Green Revolution

by fred pearce
With food prices skyrocketing and climate change looming, the world needs a green revolution like the one a generation ago. But many valuable seed varieties have been lost – and scientists now are scrambling to protect those that remain before they vanish down the genetic drain.
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Opinion

Has the Population Bomb Been Defused?

by fred pearce
Paul Ehrlich still believes that overpopulation imperils the Earth’s future. But the good news is we are approaching a demographic turning point: Birth rates have been falling dramatically, and population is expected to peak later this century — after that, for the first time in modern history, the world's population should actually start to decline.
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Too Many People, <br />Too Much Consumption

Opinion

Too Many People,
Too Much Consumption

by paul r. ehrlich and anne h. ehrlich
Four decades after his controversial book, The Population Bomb, scientist Paul Ehrlich still believes that overpopulation — now along with overconsumption — is the central environmental crisis facing the world. And, he insists, technological fixes will not save the day.
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Michael Pollan on What’s <br />Wrong with Environmentalism

Interview

Michael Pollan on What’s
Wrong with Environmentalism

In an interview with Yale Environment 360, best-selling author Michael Pollan talks about biofuels and the food crisis, the glories of grass-fed beef, and why environmentalists must look beyond wilderness to sustainability.audio
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Global Commodities Boom <br />Fuels New Assault on Amazon

Report

Global Commodities Boom
Fuels New Assault on Amazon

by rhett butler
With soaring prices for agricultural goods and new demand for biofuels, the clearing of the world's largest rain forest has accelerated dramatically. Unless forceful measures are taken, half of the Brazilian Amazon could be cut, burned or dried out within 20 years.
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The Tipping Point

Opinion

The Tipping Point

by bill mckibben
New evidence suggests that we have already passed a dangerous threshold for the amount of carbon dioxide in the atmosphere – and that the time for taking strong action is slipping away.
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Analysis

Water Scarcity: The Real Food Crisis

by fred pearce
In the discussion of the global food emergency, one underlying factor is barely mentioned: The world is running out of water. A British science writer, who authored a major book on water resources, here explores the nexus between water overconsumption and current food shortages.
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e360 digest

RELATED e360 DIGEST ITEMS


24 May 2013: Majority of Earth’s Population
Faces Water Shortages by Mid-Century

A conference of 500 of the world’s leading water scientists issued a stark declaration at the end of a four-day meeting in Germany, warning that within two generations a majority of the people on the planet will face problems obtaining ample supplies of clean water. At the meeting, “Water in the Anthropocene,” the scientists said that the of over-pumping of underground aquifers, soaring populations, pollution, the over-use of fertilizers, and climate change are seriously threatening supplies of freshwater around much of the globe. Continuing on the current path will mean that most of Earth’s population “will be living under the handicap of severe water pressure,” the scientists said, adding, “This handicap will be self-inflicted and is, we believe, entirely avoidable.” The conference proposed a wide range of solutions, including better study and monitoring of water supplies, basic reform in irrigation and agriculture, and innovation in the institutions that set national and global water policy.
PERMALINK

 

20 May 2013: System Converts Pig Waste
Into Biogas at Chinese Pig Farms

An international team of researchers has developed a system that will help Chinese farmers convert massive amounts of pig waste into a renewable source of energy
Pig Waste Biogas
Getty Images
and fertilizer. The project, led by Australia-based Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), uses a two-step anaerobic biodigester that is able to treat 73,000 tons of waste annually, producing 380 cubic meters of biogas daily and about 5,600 tons of fertilizer per year. According to its developers, it will also provide a solution to a growing waste disposal challenge in China, where pigs generate more than 1.4 million tons of excrement annually. “Only 10 percent of this waste is currently treated, posing a considerable disposal headache, as well as health and water quality risks,” said Ravi Naidu, managing director of CRC CARE. While the system is being introduced at pig farms across China, Naidu says the technology could eventually help solve critical waste management challenges worldwide and make the pork industry more sustainable.
PERMALINK

 

17 May 2013: ‘Artificial Forest’ Nanosystem
Mimics Photosynthesis, Researchers Say

U.S. scientists have developed what they say is the first integrated nanosystem capable of replicating the process of photosynthesis, a sort of “artificial forest” that could one day lead to the production of hydrogen that could be used to power fuel cells. Composed of nanowire structures — including silicon “trunks” and titanium oxide “branches” — the system mimics the role played by chloroplasts in promoting photosynthesis in green plants. By assembling the “trees” in a dense array, resembling a miniature forest, the network lowers sunlight reflection and provides more surface area for hydrogen-producing reactions, the scientists say. “We’ve integrated our nanowire nanoscale heterostructure into a functional system that mimics the integration in chloroplasts and provides a conceptual blueprint for better solar-to-fuel conversion efficiencies in the future,” said Peidong Yang, a chemist with the Lawrence Berkeley National Laboratory and co-author of the study, published in the journal NANO Letters. The lab of Daniel Nocera at Harvard University is doing related research into so-called artificial leaves.
PERMALINK

 

14 May 2013: Shifting Petrel Diets Suggest
Effect of Humans on Ocean Food Web

An analysis of the bones of ancient and modern Hawaiian petrels has revealed that modern petrels, which forage in the open ocean, are eating prey lower on the food chain than in centuries past, a dramatic shift
Hawaiian Petrel
USGS
that coincides with the rise of industrial fishing. In tests conducted on petrel bones collected over three decades in the Hawaiian islands, a team of scientists found that the bones from 4,000 to 100 years ago contained higher ratios of nitrogen-15 and nitrogen-14 isotopes than the more recent bones, suggesting that the earlier birds ate bigger prey before changes in the food web composition of the Northeast Pacific. According to the scientists, the nitrogen ratio started to decline in the decades after the early 1950s, when industrial fishing started to extend beyond the continental shelves. “Our bone record is alarming because it suggests that open-ocean food webs are changing on a large scale due to human influence,” said Peggy Ostrom, a zoologist at Michigan State University and co-author of the study, published in the Proceedings of the National Academy of Sciences.
PERMALINK

 

25 Apr 2013: Metal Demand Could Increase
Nine-Fold as Developing Economies Grow

Global demand for metals could increase nine-fold in the coming years as the world’s developing economies continue to grow, a trend that could have profound negative environmental impacts, a new UN report says. As populations in these countries continue to adopt modern technologies, and nations increasingly construct metal-intensive renewable energy projects, the need for raw metal materials will likely be three to nine times larger than the current global demand, said Achim Steiner, executive director of the United Nations Environment Program (UNEP). While the current demand is typically met by mining for more metals, large-scale mining operations can have adverse environmental consequences, and the supply of some rare earth metals is running low. Saying that there is an urgent need for a more sophisticated approach to recycling the planet's increasingly sophisticated products, the UN suggested that mining companies be enlisted to help sort out valuable metals when the products reach the end of their usefulness.
PERMALINK

 

17 Apr 2013: Outdated Management, Drought
Threaten Colorado River, Report Says

Drought, mismanagement, and over-exploitation of its waters have made the Colorado River — the lifeblood of the arid Southwest and drinking water source for 36 million people — among the most vulnerable rivers in the U.S., according to the group American Rivers. In its annual report on “America’s Most Endangered Rivers,” the organization placed the 1,400-mile Colorado at the top of the list of threatened rivers, saying the iconic river “is so dammed, diverted, and drained that it dries to a trickle before reaching the sea.” Proposals to remove more than 300,000 acre-feet of new water from the river and its tributaries, coupled with a projected reduction in its flow of 10 to 30 percent because of global warming, will add further stress to the Colorado system. According to the report, outdated water management systems also threaten the Flint River in Georgia, the San Saba River in Texas, and the Little Plover River in Wisconsin. In the U.S. Southeast, storage ponds for coal ash pose a threat to the Catawba River, a major source of drinking water for parts of North Carolina and South Carolina.
PERMALINK

 

Interview: Using Citizen Power
To Fund a U.S. Solar Revolution

Billy Parish is the president of Mosaic, an Internet “crowdfunding” service that lets individual investors put their money into commercial solar projects and earn a rate of return that
Billy Parish Solar Mosaic
Billy Parish
currently beats anything offered by a bank. This month, California regulators authorized Mosaic to offer up to $100 million in loans for solar projects. Its first loan under that authorization, $157,750 to install a 114-kilowatt array on the Ronald McDonald House in San Diego, was funded within six hours by 171 investors. Parish, 31, a co-founder of the Energy Action Coalition, decided after the failure of the 2009 climate talks in Copenhagen that the best way to drive a clean energy transition was to dive into the renewable energy business. In an interview with Yale Environment 360, Parish talks about why his generation has pursued environmental goals through entrepreneurship, how crowdfunding can fuel the solar revolution, and how he discovered “that sweet spot where making money and doing good overlap.”
Read the interview
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26 Mar 2013: China’s Utility Giants
Vulnerable to Water Scarcity, Report Says

China’s five largest power utilities, which depend on water-intensive, coal-fired stations to generate electricity, are vulnerable to water supply disruptions because they are centered in the country’s water-scarce northern regions, a new report says. According to Bloomberg New Energy Finance, the five power generators — Huaneng, Datang, Huadian, Guodian, and China Power Investment — operate hundreds of gigawatts of thermal plants in the industrial northeast, where water resources are increasingly strained. Eighty-five percent of China’s power-generating capacity is in water scarce regions, said Maxime Serrano Bardisa, one of the report’s coauthors. The report said that major technical and policy shifts will be required to avert serious disruptions, including the addition of systems that use less water, such as closed-cycle or air-cooled systems. Such improvements could cost the utilities $20 billion in retrofit costs, the report said.
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01 Mar 2013: Loss of Wild Pollinators
Affecting Global Crop Production

Research data from 600 fields in 20 countries shows that wild bees and insects are more effective pollinators than domesticated honey bees, suggesting that the continuing loss of wild insects in many agricultural
honeybee
Wikimedia Commons
landscapes has negative consequences for crop harvests. Reporting in Science, an international team of 50 scientists analyzed data from 41 crop systems around the world. They found that widespread development and modern agricultural techniques that use every available hectare of land decrease the number of key pollinators, such as wild bees, butterflies, and beetles. As the numbers and diversity of these pollinators decreases, flowering plants receive fewer visits from these insects, resulting in lower production of important crops such as tomatoes, melons, and coffee. The researchers said that using domesticated or managed honey bees did not make up for the loss of wild bees and insects. The study suggests new practices to preserve natural or semi-natural areas to support wild pollinators.
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28 Feb 2013: Earth Unlikely to Face
An Ecological Tipping Point, Study Says

A team of international scientists has rejected the idea that the planet could face a sudden and irreversible ecological shift as a result of largely human-driven pressures, suggesting that such global transformations are more likely to occur over a long period of time. While earlier studies have warned that ecological pressures — including climate change, biodiversity loss, and over-exploitation of resources — could drive the planet toward a dangerous “tipping point,” the new paper says the ecosystems of different continents are not sufficiently interconnected for such a global shift to occur. And while as much as 80 percent of the biosphere includes ecosystems that have been affected by human activities, major ecological shifts driven by these human pressures “depend on local circumstances and will therefore differ between localities,” said Erle Ellis, a scientist at the University of Maryland, Baltimore County and co-author of the paper, published in the journal Trends in Ecology and Evolution.
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19 Feb 2013: New Global Standard Aims
To Reduce Water Waste by Businesses

The UK-based Carbon Trust has introduced what it calls the first global standard on water management and reduction in hopes of encouraging more sustainable water use by businesses. The new standard, created by members of the group along with four early-adopting companies, including Coca-Cola Enterprises, will require businesses to show that they are measuring their water use and reducing consumption on a year-to-year basis, Carbon Trust executive Tom Delay told BBC News. “We look at the various water supply methods: mains, surface water abstraction, groundwater, and rainwater collection,” he said. The Carbon Trust, which already helps business and governments reduce energy use and carbon emissions, decided to expand into water issues since freshwater scarcity is closely linked with climate change. According to a 2009 report, global freshwater demand will outpace currently available supplies by 40 percent by 2030. In a survey of 475 companies in the U.S., UK, China, and Brazil, the Carbon Trust found that just one out of seven businesses have set targets for water reduction and report their performances publicly.
PERMALINK

 

12 Feb 2013: Norwegian Retrofit Seeks
To Create ‘Energy-Positive’ Office Buildings

Two office buildings in Norway are being retrofitted so they will generate more power than they use when the project is completed next year. The three- and four-story buildings, in the town of Sandvika, near Oslo, will generate geothermal and solar energy on site, making the buildings “energy positive,” according to the project's backers. The retrofit will use a heat-retaining black façade, top-quality insulation to reduce energy use by up to 90 percent, and an interior design that will allow air to circulate without fans. “We believe this is the first time in the world that a normal office block is being renovated to such strict standards,” Svein Brandtzaeg, chief executive of Norsk Hydro, one of the project’s partners, told Reuters. According to the UN Environment Programme, the building industry has the greatest potential of any economic sector for large cuts in greenhouse gas emissions.
PERMALINK

 

Interview: Probing Impact of
Warming on World Food Supply

It has long been thought that climate change could enhance crop growth through the fertilizing effects of carbon dioxide.
Stephen Long
University of Illinois
Stephen Long
But recent research conducted by Stephen Long, a professor of crop sciences at the University of Illinois at Urbana-Champaign, indicates that any gains from CO2 fertilization will be offset by damage to plants from higher temperatures, increases in atmospheric ozone, and the greater efficiency of crop pests in a CO2-enriched world. In an interview with Yale Environment 360, Long, who recently received a $25 million research grant from the Bill and Melinda Gates Foundation, talks about the impacts of climate change on some of the world’s key crops, the challenge of boosting crop yields to meet the demands of a burgeoning human population, and how tinkering with the genes involved in photosynthesis may provide the solution scientists are seeking.
Read the interview
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31 Jan 2013: Massive UK Wind Turbines
Are a Sign of ‘Super-sizing’ of Wind Power

Two of the world’s largest wind turbines, with blades 60 meters (196 feet) long, have been installed off the Yorkshire coast, a sign of a growing trend toward producing colossal wind turbines to boost generating capacity. The 6-megawatt turbines, manufactured by Siemens, are so large that they had to be installed using a specially built ship, Siemens said. The pair of turbines is being erected on an experimental basis to gauge how they perform, but the operator of the offshore wind farm, the Denmark-based DONG energy group, has plans to install dozens more so that production will reach 210 megawatts at the site, located about five miles offshore. DONG says it intends to eventually install 300 of the massive turbines by 2017 at various offshore locations in the U.K., including some in deeper waters. Energy analysts say the 60-meter Siemens turbines reflect growing interest among wind energy companies to deploy ever-larger turbines, with plans in the works to manufacture turbines 100 meters long.
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Interview: Charting a New Course
For America and the Environment

Time magazine once called him the “ultimate insider,” and indeed Gus Speth has had a long career as an establishment environmentalist. And so it might be
Gus Speth
Gus Speth
surprising that his latest book, America the Possible: Manifesto for a New Economy, offers a bleak picture of what U.S. environmentalism has accomplished and calls for an overhaul of the nation’s political economy. In an interview with Yale Environment 360, Speth, now a professor at Vermont Law School, discusses the evolution of his own thinking on how to address environmental problems and his frustration with continued inaction on climate change. He also talks about the links he sees between economic fairness and environmental health; why he is encouraged by new movements and lifestyles emerging in local communities; and why he rejects what he calls America’s “growth fetish.” “The first thing about growth is it doesn’t deliver,” Speth says, “and it detracts us and deflects us from investing in the things that really do need to grow — like jobs, like education, like green energy technology.”
Read the interview
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10 Jan 2013: Up to 50 Percent of Food
Is Wasted Worldwide, Report Says

As much as half of the food produced globally is wasted each year as a result of inefficient agricultural practices, inadequate storage facilities and transportation systems, and wasteful consumer habits, a new report says. While the world community produces about 4 billion metric tons of food annually, roughly 1.2 to 2 billion metric tons of that food — or 30 to 50 percent — is never consumed, according to the UK-based Institution of Mechanical Engineers. The causes of waste vary from region to region, the report says. In developing nations, much of the waste occurs at the local level as a result of inefficient harvesting, lack of transportation, and poor infrastructure and storage. In richer nations, the waste is often triggered by customer and retail behavior. For example, as much as 30 percent of UK vegetables are never harvested because their appearance doesn’t meet consumer standards. “This level of wastage is a tragedy that cannot continue if we are to succeed in the challenge of sustainably meeting our future food demands,” the report says.
PERMALINK

 

08 Jan 2013: Using Fireflies As a Model,
Scientists Boost Efficiency of LED Lights

Drawing inspiration from the structure of a firefly, scientists say they have improved the efficiency of a light-emitting diode (LED) by 55 percent. While studying the insects, the researchers noticed that
Firefly inspired LED
Nicolas André
LED inspired by fireflies
a pattern of sharp, jagged scales on the fireflies’ bodies enhanced the amount of light emitted by the fireflies’ lantern, an abdominal organ that creates the flashes of light to attract mates. After mimicking that structure in the production of a LED design, the researchers found that the amount of light extracted was significantly increased. Light-emitting diodes are made from semi-conductors and represent a major advance in lighting efficiency over traditional incandescent bulbs and compact fluorescent bulbs. “The most important aspect of this work is that it shows how much we can learn by carefully observing nature,” said Annick Bay, a Ph. D. student at the University of Namur in Belgium and one of the authors of a paper published in the journal Optics Express.
PERMALINK

 

04 Jan 2013: Starbucks Targets Reduction
In Paper Waste with $1 Reusable Cups

Starbucks, the world’s largest chain of coffee shops, this week started selling $1 reusable plastic cups at its stores
Starbucks reusable plastic cup
Starbucks
A reusable plastic cup
in the U.S. and Canada, an initiative the company hopes will drastically reduce the amount of paper waste that ends up in landfills. The company, which has more than 11,000 stores in the U.S., tested the reusable cups at 600 stores in the Pacific Northwest in October, and within a month found that the use of reusable cups increased 26 percent compared with a year earlier. While Starbucks says nearly 2 percent of drinks sold in 2011 were served in personal tumblers brought in by customers — a 55-percent increase in three years — the company is now targeting 5 percent use of reusable cups by 2015. Five years ago, the company had set a goal of serving 25 percent of its coffee drinks in reusable cups. Starbucks uses about 4 billion disposable cups annually.
PERMALINK

 

17 Dec 2012: ‘Peak Farmland’ Reached, as
Yields Rise and Growth Slows, Report Says

The amount of agricultural land needed to feed the world’s population has reached its peak as a result of improved crop yields and slower population growth, and as much as 10 percent of the land currently used for farming could be “restored to Nature” within 50 years, a team of experts says. In an analysis published in the journal Population and Development Review, three researchers from Rockefeller University’s Program for the Human Environment (PHE) predict that the 1.53 billion hectares (3.78 billion) acres of arable land and farming areas that existed in 2009 could drop to 1.38 billion hectares (3.41 billion acres) by 2060. “Happily, the cause is not exhaustion of arable land, as many have feared, but rather moderation of population and tastes and ingenuity of farmers,” said Jesse Ausubel, director of the PHE and lead author of the report. The PHE study stands in stark contrast to a recent UN report, which predicted that by 2050 another 70 million hectares of land would have to be cultivated to feed a growing population.
PERMALINK

 

12 Dec 2012: Large Cellulosic Biorefinery
Will Convert Corn Stalks into Biofuel

Chemical giant DuPont has started construction of a large-scale cellulosic ethanol biorefinery in Iowa capable of converting corn stalks and leaves into
Corn stover in bales
USDA
Corn stover in bales
a biofuel that could be used in place of fossil fuels at some power plants. The $200 million facility, which will be among the first and largest of its kind in the world, will produce more than 30 million gallons of ethanol annually using so-called corn stover, the remains of corn plants after the harvest, DuPont says. The company plans to collect the stover from more than 500 local farmers within a 30-mile radius, and the plant could be operational as soon as mid-2014. DuPont plans to license the production system internationally and work on designs that will expand this aspect of the biofuel industry.
PERMALINK

 

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