Floating solar panel arrays are increasingly being deployed in places as diverse as Brazil and Japan. One prime spot for these “floatovoltaic” projects could be the sunbaked U.S. Southwest, where they could produce clean energy and prevent evaporation in major man-made reservoirs.
New advances in technology are sparking efforts to use virtual reality to help people gain a deeper appreciation of environmental challenges. VR experiences, researchers say, can be especially useful in conveying key issues that are slow to develop, such as climate change and extinction.
As sightings of leopards in populated areas increase, Indian authorities are trapping the animals and keeping them in captivity — often in small cages without adequate food or veterinary care. The real solution, wildlife advocates say, is to educate the public on how to coexist with the big cats.
The Paris climate conference set the ambitious goal of finding ways to limit global warming to 1.5 degrees Celsius, rather than the previous threshold of 2 degrees. But what would be the difference between a 1.5 and 2 degree world? And how realistic is such a target?
Unhappy with how regional authorities have failed to protect fish stocks in the Western Pacific, Palau has launched its own bold initiatives – creating a vast marine sanctuary and conducting an experiment designed to reduce bycatch in its once-thriving tuna fishery.
The Asian market for the odd-looking giant clams known as geoducks has spawned a growing aquaculture industry in Washington's Puget Sound. But coastal homeowners and some conservationists are concerned about the impact of these farming operations on the sound’s ecosystem.
A steel structure in the Amazon, taller than the Eiffel Tower, will soon begin monitoring the atmosphere above the world’s largest tropical forest, providing an international team of scientists with key insights into how this vital region may be affected by global warming.
Thanks to state officials who have long supported renewables, Iowa now leads all U.S. states in the percentage of its energy produced from wind. Big companies, including Facebook and Google, are taking notice and cite clean energy as a major reason for locating new facilities there.
Ninety-nine percent of the planet's freshwater ice is locked up in the Antarctic and Greenland ice caps. Now, a growing number of studies are raising the possibility that as those ice sheets melt, global sea levels could rise by six feet this century, and far higher than that in the next, flooding many of the world’s populated coastal areas.
Gary, Indiana is joining Detroit and other fading U.S. industrial centers in an effort to turn abandoned neighborhoods and factory sites into gardens, parks, and forests. In addition to the environmental benefits, these greening initiatives may help catalyze an economic recovery.
As they investigate the factors behind the decline of bee populations, scientists are now eyeing a new culprit — soaring levels of carbon dioxide, which alter plant physiology and significantly reduce protein in important sources of pollen.
Unable to Endure Rising Seas,
Alaskan Villages Stuck in Limbo
A number of Alaska Native villages have been impacted so severely by sea-level rise and other climate-induced threats, they have decided to relocate.
But there is no U.S. agency designated to help pay for and implement an entire community’s move. Robin Bronen, a senior scientist with The Institute of Arctic Biology
at the University of Alaska, says that’s a huge problem. In an interview with Yale Environment 360
, she explains that because there is no government process to facilitate such relocations, none of these villages have been able to move, despite their resolve to do so. And in a bureaucratic Catch-22, these communities no longer receive the infrastructure repair funds they were once entitled to. Pointing to future sea level rise along U.S. coasts, Bronen says that “if we don't figure out how to create this relocation institutional framework, we're talking about humanitarian crises for millions of people living in the United States.”
Read the interview.
Researchers digging through amber mined in Myanmar have discovered one of the most pristine pairs of ancient bird wings
ever found — tiny, fossilized, feathered appendages belonging to a hummingbird-sized create that lived roughly 99 million years ago. Preserved in amber — clear, fossilized tree resin — the wings belonged to the group Enantiornithes. The preserved wings came from a bird that was much closer in appearance to modern-day birds than other bird species of that era. Researchers have discovered other ancient bird parts in amber, but usually just small fragments of isolated feathers. The pair of wings discovered in Myanmar by a Canadian team of researchers was preserved in minute detail, with hair, feathers, and bones arranged in their original form. The scientists said that even the feathers’ color was still visible. “It gives us all the details we could hope for — it’s the next best thing to having the animal in your hand,” said one scientist.
California Condor Population
Reaches New Heights in 2015
Earlier this year, the U.S. Fish and Wildlife Service announced what it called a milestone for the California condor: More chicks had hatched and fledged in the wild during 2015 than the number of condors that died,
bringing the total in the wild to 270. It was perhaps the most promising news about the condor in decades. After their numbers dropped to just 22 in the 1980s, the U.S. government began rounding up the birds for a last-ditch captive breeding program, then gradually released newly bred birds to the wild. The program was highly controversial, and the condors’ return to the wild over the past two and a half decades has been fraught with peril. But biologists have noted encouraging signs in recent years: The birds have expanded their range, are more likely to engage in wild behaviors, and have begun foraging for their own food.
Thanks to a renewal of federal tax credits and a continuing steep drop in the price of photovoltaic panels, U.S. solar energy production is surging to record highs.
New market reports show that the U.S. solar industry is expected to install 14.5 gigawatts of solar power in 2016, nearly double the record 7.5 gigawatts installed last year. (Less than 1 gigawatt of solar power was installed in 2010.) Revenues from solar installations increased 21 percent from 2014 to 2015, surpassing $22 billion. In terms of megawatts of electricity produced, new solar installations are expected in 2016 to surpass all other new sources, including natural gas-fired power plants. The extension of a 30-percent federal tax credit and a sharp drop in prices — the wholesale price of solar panels has fallen from $4 per watt in 2008 to $0.65 per watt today — are contributing to the boom. U.S.-based Solar World is building a giant solar panel factory in Buffalo, New York that is expected to employ 3,500 people.
Interview: CO2 'Air Capture' Could
Be Key to Slowing Global Warming
For two decades, Klaus Lackner has pioneered efforts to combat climate change by pulling carbon dioxide from the atmosphere.
Now, after years of watching the global community fail to bring greenhouse gas emissions under control, Lackner — director of the Center for Negative Carbon Emissions at Arizona State University — is delivering a blunt message: The best hope to avoid major disruptions from global warming is to launch a massive program of CO2 "air capture" that will begin to reverse the buildup of billions of tons of carbon in our atmosphere. "We need to have the ability to walk this backwards," says Lackner. "I'm saying this is a war, and we need to use all the weapons at our disposal. You don't want to get into this fight with one hand tied behind your back."
Read the interview.
The United States, Canada, and Mexico will pledge on Wednesday to generate 50 percent of their electricity
from non-fossil fuel sources by 2025, according to U.S. officials. The three nations are expected to set the ambitious goal at a North American Leaders Summit in Ottawa. The commitment includes not just renewable sources of power such as energy and wind, but also hydropower, nuclear power, carbon capture and storage at coal-fired power plants, and gains in energy efficiency. Under that definition, the three nations now produce 37 percent of their electricity from renewable sources. Canada is leading the way in non-fossil fuel power generation, with 59 percent of its electricity coming from hydropower and 16 percent from nuclear plants. Continent-wide cooperation on clean energy issues has improved since the election last year of Justin Trudeau as Canada’s Prime Minister.
Yale Environment 360 is
a publication of the
Yale School of Forestry
& Environmental Studies
Yale Environment 360
articles are now available in Spanish and Portuguese on Universia
, the online educational network. Visit the site.
Business & Innovation
Policy & Politics
Pollution & Health
Science & Technology
Antarctica and the Arctic
Central & South America
Tribal people and ranchers join together to stop a project that would haul coal across their Montana land. Watch the video.
is now available for mobile devices at e360.yale.edu/mobile
An aerial view of why Europe’s per capita carbon emissions are less than 50 percent of those in the U.S. View the photos.
Ugandan scientists monitor the impact of climate change on one of Africa’s most diverse forests and its extraordinary wildlife. Learn more.
video series looks at the staggering amount of food wasted in the U.S. – a problem with major human and environmental costs. Watch the video.
video goes onto the front lines with Colorado firefighters confronting deadly blazes fueled by a hotter, drier climate. Watch the video.
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.