New research on threatened ocean species finds a strong pattern with only one possible cause: Humans.
Atlantic bluefin tuna are corralled by fishing nets during the opening of the season for tuna fishing off the coast of Barbate, Cadiz province, southern Spain. (AP Photo/Emilio Morenatti)
In what's shaping up to be the hottest year on record, sea ice ties for the second-lowest extent.
Former boom towns are now experiencing a drop in tax revenues.
President Obama said Thursday that it was urgent that leaders take swift, bold action to safeguard oceans around the globe.
Amid a global effort to crack down on illegal fishing, Google and other groups plan to monitor the high seas using real-time satellite data.
The area along the continental shelf is home to many species of deep-sea coral, sharks, sea turtles, seabirds and deep-diving marine mammals, such as beaked whales and sperm whales.
After eight years of work, a decision to divide up the desert between conservation and clean energy initiatives remains contested.
A sweeping new study charting nearly four decades of changes in Arctic sea ice has again underscored the animals' plight.
Our confused and wobbling path towards low carbon energy.
How protecting huge swaths of the ocean became the new environmental obsession.
The researchers counted 862 chicks. Two months later, 700 of them were dead.
If the deal passes this year, a future President Trump would not be able to "cancel" it.
Researchers found the same types of chemicals in the vast majority of household dust samples.
New research suggests rising atmospheric methane could be tied to leaks from fossil fuels.
A long-awaited decision will boost the captive population of red wolves but limit the range of reintroduced wolves.
Brazil is the third largest country, by emissions, to have joined the accord.
Onshore and offshore wind turbines are both forecast to get a lot bigger -- and to generate energy more cheaply by 2030.
Climate change is really bad for wheat -- which is really bad for us.
Our reporters Chris Mooney and Whitney Shefte have returned from their exploration in Greenland. Here's what they documented Instagram.
New research suggests that by midcentury, it could become quite common to see shipping through the Arctic.
One expert said it would basically lead to a 'forever war.'
We've set aside less than we've lost during the same period.
Mosquitoes threaten honeycreepers with disease -- and warming temperatures let the pests reach the birds' habitat.
But they're wading into a searing debate over the carbon consequences of biomass energy.
The Gold King Mine spill sent millions of gallons of toxic water spewing into a Colorado river last year, turning its waters a garish yellow.
Meet "gene drives," which can reduce a harmful gene's chance of being passed on to offspring.
New high-resolution elevation data will allow for observation of melting glaciers, slumping permafrost, and much more.
An update of International Union for the Conservation of Nature (IUCN) Red List contains bad news about great ape species.
Their move means the emissions-cutting plan could be put in force before the next president is seated.
Florida usually gets hit by a hurricane every two years. But it's been a decade since one hit. Hermine is a reminder of reports that say a big one could cost $200 billion.
Melting sea ice could be 'a driver of changes in the climate system.'
Beekeepers prefer to avoid corn and soybean crops, and yet more and more fields are being planted.
Forest elephant populations have declined by more than 60 percent.
Some argue the beverage giant's replenishment efforts still miss the mark.
A new study suggests that the more diverse a forest is, the better it might be at adapting to the changing climate
Many national parks were established after some explorer stumbled on a mythical landscape and was awe-struck.
A new study explores what happens when human drugs make their way into streams.
Our reporters Chris Mooney and Whitney Shefte are following scientists in Greenland. Here's what they see.
On their 100th anniversary, America's parks are still beautiful. But they're struggling to attract young people and minorities.
The 87,500 acre area along the east branch of the Penobscot River is designated a national monument, but whether it will ever become a national park is unclear.
The finding could have potentially big implications for global environmental policy
Especially along the East Coast, many cities would be at risk by the end of this century.
And that could mean trouble for rivers supplying water to more than a billion people downstream.
Sensors carried by the animals are showing how disappearing glaciers could affect circulation of the oceans.
A calving event at the Larsen C ice shelf could create a floating ice island the size of Delaware.
Drought and other conditions have created a perfect storm for California's wildfires, officials say.
Lake Mead -- the system’s largest reservoir -- will narrowly escape a shortage declaration next year. But a shortage is looking imminent in 2018.
A new report says the U.S. has seen staggering gains -- or rather, savings -- from energy efficiency.
As people flee disasters, is this what climate change looks like?
The fire, aided by hot, bone-dry conditions and breezy winds, erupted fast and furiously.
