15 May 2015, 01:36 PM ET
A vast Antarctica ice shelf that partly collapsed in 2002 has only a few years left before it fully disappears.
12 May 2015, 07:02 PM ET
The remaining Larsen C ice shelf is melting from more than just toasty air. The Larsen C is also disappearing due to warming in the ocean.
11 May 2015, 03:56 PM ET
Timeworn Antarctica ice suggests a strong link between carbon dioxide levels and glacial cycles for the past million years.
01 May 2015, 11:51 AM ET
Scientists are striving to learn from the latest volcanic eruption in Chile.
29 April 2015, 03:21 PM ET
An emerging body of research shows that greenhouse gases are billowing out of the state’s woodlands.
27 April 2015, 09:27 AM ET
As Pope Francis prepares a historic document to make environmental issues a priority for Catholics, a group of climate-change deniers is trying to convince the pontiff this week that global warming is nothing to worry about.
23 April 2015, 04:15 PM ET
Spring is here, but subtle shifts in timing are having not-so-subtle impacts on wildlife.
23 April 2015, 02:34 PM ET
A Columbia University oceanographer calls on drones to help study ice melt.
22 April 2015, 07:45 AM ET
Earth Day is a time to celebrate and protect this pale blue dot we call home. But some of its crown jewels may not always be there. Here are 10 amazing places to visit before it's too late.
21 April 2015, 04:06 PM ET
Human activities greatly outstrip volcanoes as the world’s leading carbon dioxide producers, raising sea levels, drying forests and altering animal habitat. Watch ‘Secrets of the Universe’ on Hulu. http://www.hulu.com/secrets-of-the-universe
20 April 2015, 08:08 AM ET
A new set of 56 interactive maps estimates public opinion on climate change across the United States from the national to county level.
17 April 2015, 04:36 PM ET
The first three months of 2015 set new global heat records.
10 April 2015, 11:19 AM ET
New geologic evidence suggests the Isthmus of Panama emerged from the sea up to 15 million years ago, millions of years earlier than thought.
09 April 2015, 02:00 PM ET
Death by acid was the key killer in Earth's biggest mass extinction, some 251 million years ago.
08 April 2015, 03:00 PM ET
The nonprofit American Rivers has deemed the Colorado River in the Grand Canyon the most endangered river in America in 2015.
08 April 2015, 10:25 AM ET
Though California is facing the worst drought on record, the future may not be catastrophic, if the state takes action now.
07 April 2015, 12:43 PM ET
A remarkable heat wave warmed Antarctica's northernmost peninsula to slightly above 63 degrees Fahrenheit (17.5 degrees Celsius) two weeks ago — a record high for the normally cold continent.
06 April 2015, 03:03 PM ET
Much of western Canada's glacial ice could disappear by the end of the 21st century.
03 April 2015, 03:06 PM ET
The 2011 Japan tsunami released thousands of tons of ozone-destroying chemicals and greenhouse gases into the air.
03 April 2015, 01:43 PM ET
To survive global warming, technology for survival needs to reach all nations.
01 April 2015, 01:00 PM ET
Even though some polar bears are hunting on land more often in areas hit by shrinking Arctic sea ice, a diet of bird eggs and berries can't sustain these huge animals, a new study finds.
01 April 2015, 07:38 AM ET
Antarctic octopuses survive subzero temperatures because of the blue pigments in their blood, a new study finds.
31 March 2015, 04:10 PM ET
A new global map of water surface temperatures is so visually stunning that it easily may be mistaken for art.
27 March 2015, 12:30 PM ET
In West Antarctica, some ice shelves could melt away within a century.
25 March 2015, 04:43 PM ET
Pine Island Glacier in West Antarctica flowed about 325 feet (100 meters) between March 3 and March 15, 2015.
25 March 2015, 07:07 AM ET
The spring snowmelt comes more than two weeks earlier than it did in the 1970s in Wyoming's Wind River Range, a new study finds.
21 March 2015, 08:07 PM ET
Akin to the poet laureate position, the honorary one-year laureate appointment would give a respected scientist an official national platform to enhance the public understanding of science and attract students to STEM fields.
20 March 2015, 07:40 AM ET
Arctic sea ice hit its annual peak early this year, and climate scientists say the North's below-average ice conditions made this year's maximum extent the lowest on record.
19 March 2015, 09:02 AM ET
Global emissions of carbon dioxide stalled in 2014, marking the first time in 40 years that there was no climb in emissions during a time of economic growth. This suggests efforts to reduce emissions may be working, but experts say it's not that simple.
18 March 2015, 01:20 PM ET
A glacier the size of California in East Antarctica is in danger of melting away, which could lead to an extreme thaw increases sea levels by about 11.5 feet (3.5 meters) worldwide if the glacier vanishes, a new study finds.
12 March 2015, 10:33 AM ET
Winter is when Arctic sea ice reaches its peak extent, but this year it could set a record seasonal low.
11 March 2015, 07:07 AM ET
At least seven snowy owls have been spotted in New York City since December, and scientists are reaping the benefits. By tagging the owls, researchers have learned surprising things about the birds' feeding habits and ecology.
11 March 2015, 06:58 AM ET
Isolated glaciers can store liquid water in their upper layers for years, similar to firn aquifers found in Greenland.
09 March 2015, 05:22 PM ET
The famous Chinchorro mummies, which have remained preserved in Chile for more than 7,000 years, are now under threat from increased levels of moisture.
09 March 2015, 04:51 PM ET
Florida, one of the states most susceptible to the effects of climate change and sea-level rise, verbally banned state environmental officials from using the term "climate change," an investigation revealed. But the Sunshine State isn't the only U.S. stat
05 March 2015, 12:59 PM ET
A weak El Nino has finally emerged a year after its first signs of forming, but weather impacts will be muted.