07 August 2013, 10:42 AM ET
The killer whales of Puget Sound are one of a kind.
06 August 2013, 04:17 PM ET
2012 was a year of climate records, from temperatures to ice melt to sea level rise, a newly released report on the state of the global climate says. Even though natural climate cycles have slowed the planet's rising temperature, 2012 was one of the 10 ho
06 August 2013, 10:01 AM ET
For ecologist Michael Heithaus, every week is shark week.
02 August 2013, 04:11 PM ET
In the U.S., flood insurance may be causing more harm than good.
01 August 2013, 02:56 PM ET
A new study points to an armada of icebergs or meltwater from Greenland as a possible cause for the sudden climate change called the Younger Dryas, or the Big Freeze. Starting roughly 12,900 years ago, the Big Freeze halted the Northern Hemisphere's trans
01 August 2013, 01:56 PM ET
A polar bear named Tasul at the Oregon Zoo has been wearing a collar cam that shows what the world looks like through the Arctic animal’s eyes. Researchers will use data collected from Tasul's everyday movements to study the species' wild behavior.
31 July 2013, 04:23 PM ET
Like a politician whose peccadillos lead to "family time," the North Pole lake has had its fill of Internet notoriety. The stunning blue meltwater lake that formed on the Arctic ice disappeared on Monday (July 29), draining through a crack in the underlyi
31 July 2013, 11:05 AM ET
Researchers explore the causes of and solutions for rising wildfire dangers.
29 July 2013, 06:53 PM ET
Some refrigerants are more potent greenhouse gasses than carbon dioxide.
29 July 2013, 05:33 PM ET
Though it may not seem like it to those living on the mainland, in the Hawaiian Islands, Pacific tropical storms are pretty common events. It's hurricanes that are the rare bird in the region. Only four hurricanes (Iniki, Iwa, Dot and Nina) have made land
29 July 2013, 10:39 AM ET
Can wineries adapt as traditional wine-making regions warm?
28 July 2013, 01:34 PM ET
The long-suspected link between earthquakes and underwater methane bursts has finally been confirmed, a new study reports. Though the temblor wasn't caught in the act, the strong shaking left clues in methane-rich mud and sand offshore Pakistan, where two
26 July 2013, 08:28 PM ET
Can cutting carbon cut costs?
26 July 2013, 05:19 PM ET
A scientific controversy erupted this week over claims that methane trapped beneath the Arctic Ocean could suddenly escape, releasing huge quantities of methane, a greenhouse gas, in coming decades, with a huge cost to the global economy.
24 July 2013, 05:55 PM ET
A new video from NASA uses projections of greenhouse gas emissions over the course of the century to show how the United States will heat up by the year 2100, depending on how much carbon dioxide can be controlled.
24 July 2013, 12:54 PM ET
The Arctic's rapid warming could cost the global economy more than $60 trillion dollars if melting permafrost releases huge quantities of methane, a greenhouse gas, a new study finds.
24 July 2013, 11:55 AM ET
Antarctica's Dry Valleys are home to the oldest ice on Earth. The first signs of the massive thaw disturbing the Arctic have appeared in one of these valleys, melting ground frozen since the last Ice Age.
23 July 2013, 04:23 PM ET
Significant warming is imminent and inevitable at current level of greenhouse gas carbon dioxide concentration (400 parts per million), if it rises to 800 ppm, North America could rise 8 degrees Fahrenheit warmer (on average) with major consequences.
23 July 2013, 11:20 AM ET
Instead of snow and ice whirling on the wind, a foot-deep aquamarine lake now sloshes around a webcam stationed at the North Pole. The meltwater lake started forming July 13, following two weeks of warm weather in the high Arctic. In early July
22 July 2013, 01:37 PM ET
Some climate models predict the giant East Antarctic Ice Sheet will undergo relatively little change as the planet warms in coming decades, while others forecast significant melting. Now, a new study suggests parts of the East Antarctic Ice Sheet underwen
21 July 2013, 01:00 PM ET
Climate change could cause the Iberian Lynx to go extinct by the end of the century, but reintroducing them farther north could avert the disaster.
20 July 2013, 04:42 AM ET
Cutting carbon pollution may yield 210,000 new jobs.
19 July 2013, 04:25 PM ET
$240 million is committed to build an 800,00 square-foot PNC Plaza Tower that will exceed LEED Platinum standards and feature cool breeze and park-like spaces inside, while sky=gardens grow atop the roof.
18 July 2013, 03:49 AM ET
As carbon dioxide levels increase, krill populations could ultimately collapse.
17 July 2013, 03:26 PM ET
Greenland's massive ice sheet is accelerating its slide toward the ocean because bigger surface melts in recent years are softening the interior of the ice like a stick of butter, a new study finds.
16 July 2013, 06:49 PM ET
Can ocean life survive as the seas become more acidic?
16 July 2013, 09:12 AM ET
The link between drought and the rise and fall of Egypt's ancient cultures, including the pyramid builders, has long fascinated scientists and historians. A new chemical analysis of teeth enamel from Egyptian mummies reveals the Nile valley was
15 July 2013, 08:54 AM ET
A special meeting convenes in Germany this week to determine the fate of waters around Antarctica.
12 July 2013, 09:17 PM ET
The U.S. military is preparing now for climate-related crises around the world.
12 July 2013, 09:37 AM ET
Bright blue melt ponds dot the surface of the Greenland Ice Sheet as the summer melt season gets underway. The meltwater absorbs the sun's rays to cause further melt and lubricates the ice sheet's glaciers as they flow out to sea.
11 July 2013, 07:00 PM ET
Air pollution may be responsible for more than 2 million deaths around the world each year, according to a new study. Air pollution has been linked with heart problems such as heart and lung diseases
11 July 2013, 12:00 PM ET
The collapse of Antarctica's Larsen A ice shelf two decades ago unexpectedly spurred a population boom in glass sponges on the seafloor below.
11 July 2013, 08:50 AM ET
In this interview, Dr. David Grinspoon discusses the implications of the Anthropocene — a proposed geological time period that would recognize humanity as a global force shaping the landscape and evolution of our planet.
11 July 2013, 08:50 AM ET
Natural cycles in Pacific and Atlantic oceans' sea-surface temperatures combined to create extreme heat and drought across the United States. About 10 years ago, the two ocean patterns flipped back into their big drought phase. This time, they're getting
10 July 2013, 11:39 AM ET
An iceberg larger than the city of Chicago broke off from Antarctica's Pine Island Glacier this week. The newborn iceberg, which measures about 278 square miles, is floating in the Amundsen Sea.
08 July 2013, 07:13 PM ET
The documentary 'Gasland Part II' will make its television debut on HBO.