20 May 2014, 10:54 PM ET
A new report looks at the U.S. cultural heritage sites most threatened by rising seas, wildfires, and storms.
20 May 2014, 04:52 PM ET
Last month ranked as the world's hottest April on record, tying with April 2010, U.S. weather officials said. Last month was 1.39 degrees Fahrenheit (0.77 degrees Celsius) warmer than the 20th century average.
20 May 2014, 04:48 PM ET
Last month tied as the hottest April on record according to new NOAA data released Tuesday.
19 May 2014, 03:00 PM ET
Ash kicked Greenland's annual summer melt into overdrive in summer 2012. Without the boost from forest fire ash, warm summer temperatures couldn't have melted Greenland's surface ice in 2012.
19 May 2014, 02:17 PM ET
The below sea-level canyons beneath the ocean-feeding glacier cut further inland than previously estimates. Accelerated ice loss of the glacier was thought to be limited, but this finding calls into question its duration.
18 May 2014, 01:00 PM ET
The decline of Greenland's glaciers could be more spectacular than predicted, because its valleys run longer and deeper than ever thought.
16 May 2014, 01:04 PM ET
"We are a coastal country," says National Climate Assessment's Coasts chapter's Susanne C. Moser, with 94,000 miles of coastline and more than $1 trillion in coastal infrastructure and all are increasingly vulnerable.
15 May 2014, 08:23 PM ET
Coral reefs are an amazingly effective first line of defense for coastal communities.
15 May 2014, 02:47 PM ET
"The story in the Southwest is the story of water." says National Climate Assessment Southwest chapter's Gregg Garfin. Reduced agricultural yields, health impacts in cities due to heat, and flooding in coastal areas are additional concerns
14 May 2014, 04:06 PM ET
According to the National Climate Assessment, oceans currently absorb about a quarter of human-caused carbon dioxide emissions to the atmosphere, leading to ocean acidification that will alter marine ecosystems in dramatic yet uncertain ways.
14 May 2014, 01:00 PM ET
Hurricanes and typhoons are migrating from the tropics toward the poles, a new study finds.
14 May 2014, 12:33 PM ET
"Climate change, once considered an issue for a distant future, has moved firmly into the present" - The 2014 National Climate Assessment provides an in-depth look at climate change impacts in the United States.
14 May 2014, 12:26 PM ET
In 2011, many places in Texas and Oklahoma recorded more than 100 days over 100 degrees. Heat and drought contributed to more than $10 billion in agricultural losses alone. "Communities are drying up", Texas rancher Kevin Igo says.
14 May 2014, 11:38 AM ET
According to the 2014 National Climate Assessment, higher average temperatures are drying out forests fuels, increasing the vulnerability of western forests to more wildfire. "Climate change is very real," Elk Creek, CO Fire Chief McLaughlin says.
13 May 2014, 05:07 PM ET
Live Science explains the reality behind some common misconceptions about big changes in Antarctica.
13 May 2014, 02:41 PM ET
The spring melt of Arctic sea ice is underway, but what summer's minimum will be is hard to predict.
12 May 2014, 02:03 PM ET
The catastrophic collapse of the massive West Antarctic Ice Sheet is underway, researchers said today.
12 May 2014, 12:53 PM ET
After 40 years of observation, NASA and University of California researchers agree that melting of the West Antarctic Glacier has passed the point of no return. It contains enough ice to raise sea levels ~4 feet, but could take centuries to melt.
12 May 2014, 09:55 AM ET
NASA is hosting a media teleconference today (May 12) to announce new findings from the ever-changing West Antarctic Ice Sheet, and you can watch the announcement live online.
11 May 2014, 10:14 AM ET
A recent study found that the musky rat-kangaroo — the tiniest kangaroo species on Earth — can only survive in tropical rainforests, habitats that some scientists say are threatened by global warming.
10 May 2014, 03:42 AM ET
The beauty of the Milky Way, a monster solar flare and a double rainbow — What else do you need? Check out the rest of these amazing science images to find out!
09 May 2014, 09:52 PM ET
New research suggests plants are riding a calcium wave just to survive in the increasingly salty, or saline, soils that have become a problem the world over.
09 May 2014, 02:00 PM ET
Global sea level could rise between 10 to 13 feet if a relatively small mass of ice currently corking an Antarctic Ice Sheet were to melt with warming sea water.
09 May 2014, 01:50 AM ET
Policies to curb climate change and fossil-fuel burning will benefit children's health both in the Unites States and abroad.
08 May 2014, 12:18 PM ET
The White House is teaming up with the Weather Channel today (May 8) to host a discussion about the current state of climate science, and to examine the results of a sweeping new report on the regional effects of global warming.
08 May 2014, 08:37 AM ET
A type of freshwater algae, known as "rock snot," that infiltrates river bottoms and clumps on rocks is not an invasive species introduced into waterways by humans, a new study finds.
07 May 2014, 09:58 PM ET
Some crops grown at elevated carbon dioxide levels have less zinc and iron.
07 May 2014, 04:19 PM ET
Didymo, also known as "rock snot," is a type of freshwater algae that clumps on rocks and invades river bottoms.
07 May 2014, 02:16 PM ET
Grocery prices are rising with climate — a trend that shows no sign of letting up.
07 May 2014, 01:00 PM ET
About half of the surface warming that's helping shrink Greenland's glaciers is due to a natural climate cycle in the tropical Pacific Ocean
06 May 2014, 04:43 PM ET
The U.S. National Climate Assessment shows that summers are getting hotter, heat waves are lasting longer, and weather is getting more extreme.
06 May 2014, 01:15 PM ET
From longer and hotter summers to heavier downpours to more coastal flooding, the effects of human-induced climate change are already hitting every region of the United States and the U.S. economy, a government report finds.
06 May 2014, 12:49 PM ET
The White House will broadcast an event online today to highlight the findings of the newly released National Climate Assessment, which details the regional effects of climate change and examines the impact of global warming on the national economy.
04 May 2014, 06:15 PM ET
When in January rainfall was double the expected average over wide areas, many people made cautious links between such extreme weather and global climate change. There were nay-sayers at the time but it now seems that there is evidence for those links.
02 May 2014, 12:05 PM ET
Farmers in Iowa are seeing changes in rainfall amounts and temperature fluctuations.. Farmer Arlyn Schipper talks about the hazy future of farming.
02 May 2014, 11:11 AM ET
Farmers in Iowa are seeing changes in rainfall amounts and temperature fluctuations. Farmer Matt Russell talks about the impact being felt on the ground.