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.
05 March 2015, 01:15 AM ET
To solve the climate crisis, people will need to see beyond their human nature.
04 March 2015, 07:36 AM ET
Arctic sea ice — the ice that freezes and floats on Arctic waters — is thinning at a steadier and faster rate than researchers previously thought, a new study finds.
03 March 2015, 07:29 AM ET
Earth's last ice age was so cold that even Antarctica's emperor penguins had trouble with the chill, a new study finds.
02 March 2015, 06:36 PM ET
California's severe drought is just a taste of the dry years to come, thanks to global warming, a new study finds.
26 February 2015, 04:48 PM ET
Last summer, the discovery of several new giant craters in Siberia drew worldwide interest, launching wild speculation that meteorites, or even aliens, caused the gaping crevasses. And now, scientists have found even more of them.
26 February 2015, 04:47 PM ET
Seven giant craters have mysteriously appeared in northern Siberia, possibly due to methane gas released from melting permafrost. And scientists think may be dozens more.
26 February 2015, 03:22 PM ET
The Pacific was a planetary air conditioner for the past two decades, but the relief may soon end, a new study finds.
26 February 2015, 12:42 PM ET
If you’re younger than 30, you’ve never experienced a month in which the average surface temperature of the Earth was below average.
25 February 2015, 02:45 PM ET
The climate-changing greenhouse effect exists and has been directly measured in the United States.
24 February 2015, 12:54 PM ET
Mysterious flooding and high tides along the East Coast in 2009 and 2010 now have an explanation: a major change in the Atlantic Ocean's wind patterns and warm-water currents.
19 February 2015, 04:50 PM ET
As if the outdoors weren't harsh enough with Boston buried under ungodly amounts of snow and the rest of the Northeast unable to shake the bitter cold, more winter weather is on the way. So what's behind this extreme chill?
19 February 2015, 04:27 PM ET
Hot and humid cities can birth more summer thunderstorms than rural areas in the Southeast.
17 February 2015, 08:20 AM ET
Colorful satellite maps show how ocean acidification varies across the globe, a first step toward monitoring this side effect of climate change from space.
13 February 2015, 12:13 AM ET
More schools are divesting from fossil fuels, a trend that appears to be accelerating.
12 February 2015, 02:00 PM ET
Before this century ends, the Southwest and Central Plains states could shrivel under decades-long megadroughts worse than those that ended the Ancestral Pueblo civilization millennia ago.
11 February 2015, 04:37 PM ET
The polar vortex is sending cold air to the East again. Research continues into role warming might play.
11 February 2015, 01:00 PM ET
A massive outpouring of carbon dioxide from the deep ocean helped end the last ice age, scientists report today.
10 February 2015, 07:36 PM ET
A greenhouse gas is any gaseous compound in the atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding heat in the atmosphere.
10 February 2015, 03:59 PM ET
Geoengineering offers solutions and risks but reducing emissions is still the best way to address climate change.
10 February 2015, 07:25 AM ET
Iceland is rising at a faster pace as global warming melts the island's ice caps, scientists say.
07 February 2015, 08:43 AM ET
While the tornado total will climb by 2100, the number of tornadoes will also swing wildly from year to year.
05 February 2015, 02:00 PM ET
The rise and fall of sea level during the past million years matches up with valleys and ridges on the seafloor, suggesting a link between underwater eruptions and ice ages, two new studies find.
30 January 2015, 04:19 PM ET
Americans support government action to combat the effects of global warming and will likely vote for candidates who put forth a promising stance on environmental issues, a new poll has found.
30 January 2015, 01:54 PM ET
A once-thriving Mesoamerican metropolis dried up about 1,000 years ago when below-average rainfall triggered centuries-long droughts that largely prompted people to abandon the city for greener opportunities, a new study finds.
30 January 2015, 01:35 PM ET
Layer by layer, scientists have filled in the hidden expanse of Greenland's vast ice sheet, revealing where the island hides its oldest ice.
30 January 2015, 12:50 PM ET
Seven thousand year-old rock paintings in the Sahara desert have, somewhat serendipitously, helped uncover evidence of ancient lake beds.
29 January 2015, 07:49 PM ET
Threats are starting to derail climate research, just when the planet needs it most.
29 January 2015, 02:00 PM ET
The general public and scientists disagree on a wide range of scientific topics, from the safety of genetically modified foods to the cause of climate change.
28 January 2015, 02:23 PM ET
We can reverse the planet's warming, but not with a "wait and see" approach.