23 June 2014, 02:35 PM ET
May was the warmest month ever measured on Earth since the 1880s, when cowboys battled in Wild West shootouts and the State of Liberty was built.
22 June 2014, 01:00 PM ET
Frightful floods, freezes and heat waves favor certain parts of the Northern Hemisphere, thanks to strong atmospheric currents that repeatedly steer extreme weather to the same places, a new study finds.
19 June 2014, 10:50 AM ET
A regional look at how summer temperatures have been steadily rising across the U.S. since 1970.
18 June 2014, 11:21 PM ET
Solving the global warming crisis doesn't require countless policy approaches — three should do.
16 June 2014, 05:48 PM ET
President Obama spoke out about climate change over the weekend, in a commencement speech delivered to new graduates at the University of California, Irvine.
14 June 2014, 08:43 AM ET
A long-necked sea monster, the cutest penguins and Lake Superior's icebergs are just a few of the awesome images we found in Science this week.
12 June 2014, 09:22 PM ET
NASA's Orbiting Carbon Observatory-2 (OCO-2) will collect hundreds of thousands of measurements each day as it flies over Earth.
12 June 2014, 05:48 PM ET
A new NASA spacecraft is about to embark on a 2-year mission to learn about how carbon dioxide — a heat-trapping gas driving climate change — cycles through the Earth's atmosphere.
12 June 2014, 09:37 AM ET
Since the last Ice Age, penguins have basked in warmer Antarctic climates because less ice makes it easier for the birds to breed and hunt for food, a new study reveals. But current climate change is happening too fast for their food supply to cope.
10 June 2014, 07:01 PM ET
As the glaciers melted about 15,000 years ago, warmer weather and ice-free conditions allowed king penguins to colonize the string of islands north of Antarctica, a new genetic study has found.
10 June 2014, 02:12 PM ET
Where are U.S. tornadoes most common? New maps of twisters by latitude and longitude show clearly.
10 June 2014, 12:45 PM ET
Despite booming adult populations, young lobster numbers are nearly half of what they were in 2007.
10 June 2014, 04:30 AM ET
Various explanations for why we don’t see aliens have been proposed but with every new discovery of a potentially habitable planet, the Fermi Paradox becomes increasingly mysterious.
07 June 2014, 02:37 AM ET
If people choose not to "believe" in a reality as documented as the Holocaust, should society be surprised that there is debate about the established facts of science?
07 June 2014, 01:16 AM ET
Is "fight or flight" the right response for a warming climate?
06 June 2014, 03:32 PM ET
A late fall warm spell in Australia extends a period of record warmth influenced by global warming.
06 June 2014, 02:32 PM ET
An amazing new video shows Arctic life from a polar bear's point of view.
05 June 2014, 07:25 PM ET
San Francisco-based company Carbon Lighthouse discusses how they take money-guzzling/power-hungry buildings and turn them into energy efficient/cost-saving structures.
02 June 2014, 04:43 PM ET
Even a weak El Niño could hike global temperatures to record levels this year and into 2015.
29 May 2014, 02:00 PM ET
One of the world's great coral reef regions protected fish from the ravages of climate change for the past 3 million years.
29 May 2014, 01:49 AM ET
Desmond Tutu is joining with students and others to apply anti-apartheid tactics to climate-harming industries.
28 May 2014, 02:06 PM ET
Scientists are closely tracking Greenland's 2014 summer thaw to see if it will repeat 2012's impressive meltdown, or return to a more mundane trend.
28 May 2014, 01:03 PM ET
Natural climate warming caused huge ice sheet collapses in Antarctica eight times in the past 20,000 years. One iceberg release pushed global sea level up by 6.5 feet (2 meters) in just 100 years.
28 May 2014, 12:41 PM ET
Few other places in the West exemplify the changes brought about by climate change more than the Navajo Nation.
28 May 2014, 04:19 AM ET
As Antarctic ice collapses, there are impacts beyond global climate
27 May 2014, 01:06 PM ET
Americans are more concerned and motivated to act when they hear about "global warming," versus "climate change," even though scientists prefer the latter term for technical reasons, new research finds.
23 May 2014, 12:25 AM ET
Scientific studies in recent weeks revealed the "climate change hypothetical" is real.
22 May 2014, 08:36 AM ET
Pat Sajak, the longtime host of "Wheel of Fortune," set off a social media firestorm earlier this week when he took to Twitter to call people who believe in climate change "alarmists" and "unpatriotic racists."
21 May 2014, 01:57 PM ET
It's time for deniers of human-caused global warming to stop using an old magazine story as ammunition against the consensus of today's climate scientists.
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.