12 January 2009, 03:30 AM ET
Controversial calculation disputed by the search engine giant.
15 December 2008, 12:01 PM ET
Rising carbon dioxide levels and expanding ocean minimum zone in ocean could force squids out of habitat.
11 November 2008, 08:38 AM ET
Leaders need an emergency backup plan if cuts in greenhouse gas emissions don't work.
10 November 2008, 04:42 AM ET
Bulk of wine's carbon footprint comes through transportation methods.
23 October 2008, 09:26 AM ET
Greenhouse gas more powerful than carbon dioxide is more prevalent in atmosphere than thought.
19 October 2008, 01:43 PM ET
Typhoon rains create runoff of carbon-rich sediment to ocean where carbon can be buried.
06 October 2008, 01:24 PM ET
Warming ocean waters increase Arctic storminess, speed sea ice movement, possibly impact climate.
03 October 2008, 05:33 AM ET
Increasing carbon dioxide levels making oceans more acidic, noisier.
01 October 2008, 09:02 AM ET
Arctic may have gotten ice sooner than previously thought, study suggests.
27 August 2008, 06:20 AM ET
North American Arctic contains more carbon subject to permafrost thaw that previously thought.
20 August 2008, 04:51 AM ET
Hordes of mountain pine beetles are decimating British Columbian forests.
18 July 2008, 09:59 AM ET
After online reports of position reversal, APS reaffirms human-induced climate change.
11 July 2008, 10:34 AM ET
Car-sharing companies see record growth as gas prices rise.
23 June 2008, 04:59 AM ET
Analysis of zircons suggests earliest rocks on Earth weathered away.
10 June 2008, 09:01 AM ET
Rapid sea ice melt could intensify land warming in Arctic regions.
16 April 2008, 12:50 PM ET
Ten of the most outlandish and implausible concepts that just might save our world.
10 April 2008, 05:12 AM ET
Cosmic rays aren't to blame for Earth's rising global temperatures.
07 April 2008, 08:00 PM ET
Carbon dioxide could be sucked from smokestacks and made into plastics.
06 April 2008, 08:00 PM ET
Black carbon in soot warms atmosphere more than estimated, should be reduced.
28 March 2008, 04:29 AM ET
WWF's 'Earth Hour' calls on people to turn off lights to highlight global warming.
19 March 2008, 08:00 PM ET
X Prize Foundation begins challenge to build clean, efficient, marketable car.
26 February 2008, 07:00 PM ET
Making solar cells produces fewer air pollutants than coal and oil power plants.
11 February 2008, 11:45 AM ET
Rising temperatures, CO2 levels could spur insect explosion in some areas.
07 February 2008, 09:00 AM ET
Biofuels may create carbon debt, as land cleared for crops releases carbon.
25 January 2008, 06:01 AM ET
Farming practices increasing CO2 levels of Mississippi, Gulf of Mexico.
22 January 2008, 05:32 AM ET
Higher carbon dioxide levels may decrease protein levels in some food crops.
11 January 2008, 09:07 AM ET
A mysterious layer of the ocean seems to trap carbon, a new study shows.
11 January 2008, 08:09 AM ET
It can suck carbon dioxide, a major greenhouse gas, right out of the air.
11 January 2008, 04:36 AM ET
The head of the Environmental Protection Agency repeatedly refused to say Tuesday how soon he will comply with a Supreme Court ruling and decide whether to regulate carbon dioxide, the leading gas linked to global warming.
13 December 2007, 09:01 AM ET
Coral reefs face almost certain death due to rising carbon dioxide in oceans.
11 December 2007, 06:27 AM ET
Fifty miles above the North Pole shine the brightest clouds known.
29 November 2007, 06:00 AM ET
European forests are growing and absorbing more carbon dioxide than expected.
27 November 2007, 05:55 AM ET
Droughts hamper carbon sinks, let carbon dioxide accumulate in atmosphere.
20 November 2007, 03:02 AM ET
Emerging technologies could attack global warming directly.
19 November 2007, 10:32 AM ET
Technological advances could increase emissions, instead of decreasing them.
16 November 2007, 09:46 AM ET
Rising carbon dioxide levels, not warming temperatures, delaying leaf change.