Officials are moving ahead with a major revitalization of the Los Angeles River – removing miles of concrete along its banks and re-greening areas now covered with pavement. But the project raises an intriguing question: Just how much of an urban river can be returned to nature?
The dramatic decline in global bee populations has gained wide attention, but recent studies show that insects of all types are in trouble in much of the world. Many factors — including monoculture farming, pesticide use, and habitat loss — are to blame for the plight of insects, which are essential to agriculture and functioning ecosystems.
Researchers are finding that kelp, eelgrass, and other vegetation can effectively absorb CO2 and reduce acidity in the ocean. Growing these plants in local waters, scientists say, could help mitigate the damaging impacts of acidification on marine life.
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.
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.
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.
Ford Motor Company is developing car parts made out of captured CO2 to help reduce the environmental footprint of their vehicles. The automaker is working with Novomer, a Massachusetts-based chemistry company, to convert CO2 emissions from sources like power plants into foams and plastics for use in everything from headrests, seat cushions, and instrument panels, according to The Washington Post
. Most foams and plastics in Ford cars today are made out of petroleum, the Post reported, meaning that not only do the cars use fossil fuels as they drive, but also in their construction. So far, Novomer has been able to replace about half of the petroleum in foam with CO2-based materials — at least in the lab. It could be years before the technology finds its way into commercially available Ford vehicles. The company claims to be the first automaker
developing CO2-based car parts.
At Ground Zero for Rising Seas,
A TV Weatherman Talks Climate
John Morales is part of a new breed of TV weather forecasters seeking to educate viewers on climate change and the threat it poses.
In South Florida, where porous limestone geology and sea level rise are already causing periodic flooding, he has a rapt audience. The chief meteorologist of the NBC affiliate station in Miami, Morales uses his broadcasts and Twitter feed to tie weather trends in South Florida to the broader influences of climate change. In an interview with Yale Environment 360
, Morales discusses a heartening shift away from climate change skepticism among the nation’s television weather forecasters, the positive public reaction to his discussion of climate change, and the daunting threats facing the Miami area, ranked as one of the regions in the world most vulnerable
to sea level rise.
Read the interview.
South Africa’s great white sharks are at risk of disappearing due to pollution, human interference, and a limited gene pool, according to a new study in the journal Marine Ecology Progress Series
A great white shark.
Scientists from Stellenbosch University spent six years tracking great white populations in Gansbaai, a fishing town and shark hotspot in western South Africa. They estimated there are 350 to 520 great whites remaining along the country’s coastline — 52 percent fewer than previously thought. "The numbers… are extremely low. If the situation stays the same, South Africa's great white sharks are heading for possible extinction," Sara Andreotti, a marine biologist and lead author of the study, said in a statement
. The scientists said shark nets, poaching, habitat encroachment, pollution, and loss of food were all to blame for the sharks’ demise. Low genetic diversity among the remaining sharks would make it difficult for the population to bounce back, they said.
June marked the 14th consecutive month of record-breaking heat, with global temperatures measuring 1.62 degrees F above the 20th-century average, NASA and the National Oceanic and Atmospheric Administration announced this week
Global 2016 temperatures.
The first half of 2016 was 1.89 degrees F above last century’s average, breaking the previous January-June record set in 2015 of 0.36 degrees F above average. “2016 has really blown  out of the water,” Gavin Schmidt, director of NASA's Goddard Institute for Space Studies, told reporters
. Five of the first six months of this year have also set records for the smallest Arctic sea ice extent since satellite records began in 1979. Scientists said the recent record-breaking heat could be partly attributed to last year’s strong El Nino, but not entirely. “While the El Niño event… this winter gave a boost to global temperatures from October onwards, it is the underlying trend which is producing these record numbers,” Schmidt said
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.
As a result of the recent El Nino, the Amazon rainforest is the driest it has been at the start of a dry season since 2002 — setting “the stage for extreme fire risk in 2016” in the region,
The Amazon rainforest.
NASA warned in a new fire forecast for South America
. The risk for wildfire this year now exceeds the risk in 2005 and 2010, years when wildfires burned large swaths of the forest, the scientists found. Terrestrial water storage, or soil moisture, is also lower than previous years, NASA said. “When trees have less moisture to draw upon at the beginning of the dry season, they become more vulnerable to fire and evaporate less water into the atmosphere,” said
UC-Irvine scientist Jim Randerson, who helped create the forecast. “This puts millions of trees under stress and lowers humidity across the region, allowing fires to grow bigger than they normally would.”
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.