12 December 2013, 10:17 AM ET
The banning of ozone-depleting chemicals hasn't yet caused detectable improvements in the Antarctic ozone hole. That's not because the hole isn't healing. Rather, wind patterns are responsible for the varying size of the ozone hole.
11 December 2013, 12:39 PM ET
Scientists are studying how the warming climate is effecting the vegetation on Greenland's tundra, where woody shrubs are replacing grasslands, which could change how much carbon dioxide is absorbed from the atmosphere.
11 December 2013, 12:00 PM ET
Wildfires may be getting worse in the western United States, and hotter, drier weather that comes with climate change may be to blame.
11 December 2013, 11:26 AM ET
The trail of twisted metal and torn roofs left behind by massive twisters is growing longer and wider, a sign that tornadoes are stronger since the mid-1990s.
10 December 2013, 04:29 PM ET
Diatoms, a type of algae, are an excellent way to measure climate change because of how they respond to the climate and how lake ecosystems might be affected by those changes.
10 December 2013, 03:13 PM ET
Human-caused climate change may have worsened drought in Syria, indirectly contributing to unrest and eventual civil war in the country, a new study finds.
10 December 2013, 01:20 PM ET
The higher levels of carbon dioxide in the atmosphere could spur mold to grow more allergenic proteins, exacerbating people's response to the fungus, new research finds.
10 December 2013, 09:32 AM ET
Water poured onto crops in the Western United States may evaporate and be carried by winds to the East Coast, making the North Atlantic summers slightly wetter, new research suggests.
09 December 2013, 05:05 PM ET
Bacteria that hitch a ride on methane bubbles from the ocean floor may devour the greenhouse gas before it has a chance to enter the atmosphere, new research suggests.
08 December 2013, 03:40 PM ET
Thirty years of shrinking Arctic sea ice has boosted extreme summer weather, including heat waves and drought, in the U.S and elsewhere.
06 December 2013, 09:38 PM ET
Is existing evidence for a warming climate enough for people to act?
06 December 2013, 04:36 PM ET
More than 20,000 scientists will descend on San Francisco this week for the annual meeting of the American Geophysical Union.
06 December 2013, 11:25 AM ET
More than 20,000 scientists will descend on San Francisco Monday for the annual meeting of the American Geophysical Union.
05 December 2013, 07:05 PM ET
Arctic drilling brings great risks for few rewards.
04 December 2013, 03:27 PM ET
Famed climate scientist James Hansen and colleagues from a diverse array of disciplines, including economist Jeffrey Sachs, make the case that warming needs to be kept below the widely cited figure of 2 degrees Celsius, by means of a carbon tax.
04 December 2013, 10:04 AM ET
As waters rise around New York, so does a city park.
04 December 2013, 12:06 AM ET
Natural history museum records are most often associated with preserved specimens, kept with information about the place and time of collection.
03 December 2013, 03:16 PM ET
In a public outreach effort, scientists at Columbia University have banded together to create a 2014 Climate Model wall calendar, in which they dress up and smile for the camera and help show the public that they are normal people.
02 December 2013, 06:42 PM ET
If the planet warms by a couple degrees, what does that mean for your neighborhood?
02 December 2013, 05:25 PM ET
Halting efforts could result in rapid climate changes and even war.
02 December 2013, 05:03 PM ET
In an effort to humanize climate scientists and engage the public with climate change research, Columbia scientists have banded together to model in the first ever Climate Model wall calendar.
27 November 2013, 10:21 PM ET
Americans can be thankful for the nation's natural bounty, but assuming that bounty will last indefinitely is a trap.
27 November 2013, 02:20 PM ET
Coffee growing is not adapting well to a changing climate.
27 November 2013, 02:08 PM ET
People won't be motivated about global warming until the call to action is clear.
27 November 2013, 01:39 PM ET
People are starting to feel the impacts of ocean acidification.
26 November 2013, 11:57 AM ET
Thanks in large part to gas wells and cow farms, the United States is spewing 50 percent more methane than previous estimates have measured, according to a new study.
26 November 2013, 11:01 AM ET
Greenland's ice sheet was smallest between 3,000 and 5,000 years ago. That suggests that warming oceans may play the biggest role in shrinking the ice sheet in current global warming.
24 November 2013, 01:00 PM ET
The Arctic methane time bomb is bigger than scientists once thought, according to a new study. About 17 teragrams of methane escapes each year from a broad, shallow underwater platform called the East Siberian Arctic Shelf.
22 November 2013, 07:47 PM ET
Endangered status cannot come too soon for the pinto abalone.
22 November 2013, 04:51 PM ET
Quoted out of context in a New York Times Op-Ed, Michael Mann asks why the newspaper is turning to misleading voices.
21 November 2013, 06:54 PM ET
Can science tease out the complete picture of human-climate interactions?
21 November 2013, 07:18 AM ET
A recent report from the United Nations projects global population could hit 11 billion people by the year 2100. How might this rapid growth affect climate change?
21 November 2013, 07:15 AM ET
While most climate-change predictions look ahead to the potential risks 50 or 100 years from now, there are places around the globe that are already being impacted by global warming.
19 November 2013, 01:57 PM ET
As oceans take up more carbon dioxide and become more acidic, marine animals may struggle to survive. Now, a new study finds that green sea urchin larvae show impaired digestion in acid environments.
19 November 2013, 12:57 PM ET
With a warming world, extreme weather is becoming all too common.
19 November 2013, 12:30 PM ET
The world is on track to emit nearly 40 billion tons of carbon in 2013 — a record increase that is 61 percent above 1990 levels, a new report suggests.