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, 09:32 AM ET
Scientists have invented a device that can suck carbon dioxide, a major greenhouse gas, right out of the air.
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.
15 November 2007, 09:00 AM ET
Trees damaged by hurricanes contribute carbon dioxide, fuel global warming.
14 November 2007, 08:00 AM ET
Bacteria hiding out in bubbling mud thrive and chow down on its methane.
09 November 2007, 02:46 AM ET
The seas themselves might be used to combat global warming.
07 November 2007, 02:47 AM ET
Global warming brings earlier spring bloom to some areas, later to others.
05 November 2007, 12:02 PM ET
Habitats with fewer plant species produce less oxygen, food, fiber overall.
31 October 2007, 05:58 PM ET
Researchers estimate wildfires release more carbon dioxide than thought.
25 October 2007, 10:00 AM ET
The ultimate response to climate change is uncertain, but warming will happen.
24 October 2007, 06:39 AM ET
Images of ocean color show Earth's sea life struggling in warming oceans.
23 October 2007, 05:07 AM ET
The new plastic can pull carbon dioxide from natural gas.
22 October 2007, 01:00 PM ET
Carbon-intense technologies, over-burdened sinks make CO2 levels accelerate.
01 October 2007, 05:18 AM ET
Leftover eggshells could be used to boost hydrogen fuel production.