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.
19 November 2013, 07:49 AM ET
The United Nations estimates that 11 billion people will live on Earth by 2100, faster than previously predicted. Here's what that means for food security, water supplies, disease outbreaks, Earth's animals and other issues/
18 November 2013, 10:58 PM ET
For climate negotiations to work, nations must maintain their commitments.
18 November 2013, 03:00 PM ET
Long-lived algae growing on the Arctic Ocean seafloor may hold a record of
climate change extending back more than 600 years. The algae growth slows
each winter when sea ice blocks sunlight, leaving behind layers similar to
18 November 2013, 03:00 PM ET
Bright pink algae show how Arctic sea ice responded to climate swings for the past 650 years.
18 November 2013, 12:42 PM ET
The rise in global carbon dioxide is causing dramatic ocean acidification is threatening a number of aquatic species, including oysters farmed for human consumption.
15 November 2013, 10:10 AM ET
The country has dramatically scaled back its goals for slashing greenhouse gas emissions. The catastrophic Fukushima Daichi nuclear accident has led the country to reevaluate any nuclear power use, leading it to rely more heavily on fossil fuels.
14 November 2013, 11:48 AM ET
Individual birds haven't changed their migration schedules in response to climate change. Instead, the results of a 14-year-long study of a migratory shore bird species suggested that early-born birds get more worms and can migrate sooner.
12 November 2013, 03:28 PM ET
Climate change threatens to reduce crop yields in much of the world.
12 November 2013, 01:08 PM ET
Six mistakes appear in the Intergovernmental Panel on Climate Change's latest summary report on global warming and climate change.
11 November 2013, 05:35 PM ET
A monthlong underwater research mission led by Fabien Cousteau, grandson of the celebrated oceanographer Jacques Cousteau, has been postponed until the spring.
08 November 2013, 04:48 PM ET
Small consumer choices can reduce your contribution to fracking.
08 November 2013, 02:05 PM ET
Solar radiation, trapped by our atmosphere, keeps Earth warm. But if human activity is making it too warm, Stanford scientists have developed a panel that can return heat to space. Is this a tool for future geo-engineering?
07 November 2013, 11:36 AM ET
Why would Nebraska's state legislators oppose learning how warming will affect state crops?
05 November 2013, 03:22 PM ET
Antarctica could hold 1.5-million-year-old ice that could be drilled to reveal the Earth's ancient climate history. An ice core of this age would be twice as old as the next oldest sample.
05 November 2013, 12:35 PM ET
Every fall, thousands of polar bears gather on the southwest banks of Hudson Bay, in Canada, to wait for sea ice to form so they can hunt. Now, thanks to the philanthropic media organization Explore.org, anyone with an Internet connection can watch the an
05 November 2013, 12:25 PM ET
A global warming event about 50 million years ago led tiny ancestral horses to decrease in size by about 20 percent, new research suggests. This was the second instance in which warming caused decreases in mammal body size.
05 November 2013, 10:11 AM ET
Denali gets the do-it-yourself Google Street View treatment in order to monitor environmental changes in the park.
04 November 2013, 06:32 PM ET
After ten years, the cost of cutting carbon grows exponentially higher.
04 November 2013, 06:01 PM ET
Do your blue jeans come with a climate-change patina?
04 November 2013, 10:01 AM ET
When carbon dioxide is absorbed by the ocean, the water's acid level rises. If this level gets too high, some sea creatures that build protective shells can't grow as fast or even have their shells dissolve, threatening the entire food chain.
01 November 2013, 11:07 AM ET
Carbon dioxide emissions hit a record high in 2012, but could have been even higher, according to a new report. The increase in emissions was only 1.1 percent in 2012, compared to an average 2.9 percent over the past decade.
31 October 2013, 04:20 PM ET
Hurricane Sandy's powerful storm tide flooded 70 percent of New Jersey's historic submerged marshes. Now, geologists are plumbing for past storm records.
31 October 2013, 01:21 PM ET
Beach nourishment works, according to a detailed survey of New Jersey homes damaged by Hurricane Sandy. But protecting private property by replenishing storm-damaged beaches may be tilting at windmills.