25 July 2007, 09:00 AM ET
Ozone could damage plants and block an important carbon sink.
23 July 2007, 10:10 AM ET
Americans more in support of alternative energy now than five years ago.
19 July 2007, 04:55 AM ET
Over past two decades, vine growth has increased in southern forests.
16 July 2007, 05:34 AM ET
Mounting evidence and fulfilled predictions back up climate change theory.
27 June 2007, 09:23 AM ET
Environmental group objects to plans to dust ocean with iron.
26 June 2007, 08:04 AM ET
Coal seams could be used to store the greenhouse gas.
21 June 2007, 10:00 AM ET
Icebergs formed from Antarctic melting support teeming communities of life.
07 June 2007, 06:46 AM ET
G8 countries agree to cut greenhouse gas emission in half by 2050.
21 May 2007, 04:37 PM ET
Increase of output accelerates.
09 May 2007, 01:32 PM ET
Global warming may superheat summers in the eastern United States, NASA says.
08 May 2007, 04:00 AM ET
Study debunks earlier research pointing to plants emitting methane.
07 May 2007, 10:13 AM ET
Eruptions that sundered Greenland from western Europe set
off intense global warming 55 million years ago.
17 April 2007, 09:00 PM ET
Fuels high in ethanol may pose an equal or greater risk to public health than regular gasoline, new findings suggest.
17 April 2007, 08:00 PM ET
It's touted as clean, cheap and potentially plentiful. But this fuel from corn and waste products can also be bad for the environment and downright dangerous.
16 April 2007, 04:27 AM ET
Corncob waste is one scientist?s solution to the problem of developing smaller natural gas tanks that could fit into passenger vehicles.
11 April 2007, 05:51 AM ET
New York City produces nearly 1 percent of the nation's greenhouse gas emissions â€” an amount that puts it on par with Ireland or Portugal â€” according to a city study.
09 April 2007, 01:12 PM ET
Tropical rainforests help slow down global warming, while trees in higher latitudes may cause more warming, a new study finds.
29 March 2007, 10:02 AM ET
There are other chemical culprits causing climate change, and scientists now urge more attention be paid to them.
09 March 2007, 06:37 AM ET
Global warming would be substantially worse right now if not for an international agreement in the 1980s that banned the use of ozone-destroying chemicals, a new study finds.
16 February 2007, 12:29 PM ET
A new technique for converting heat into electricity could lead the way to new, more efficient energy sources.
13 February 2007, 07:00 PM ET
Storing carbon dioxide underground to reduce greenhouse gases may be a safer method than previously thought.
29 January 2007, 10:15 AM ET
Scientists and engineers are developing a cleaner way to manufacture cement, which would cut down on emission of the greenhouse gas.
05 January 2007, 03:05 AM ET
Tree growth in temperate forests is driven by availability of water and not by temperature as previously thought.
21 December 2006, 10:00 AM ET
Acid rainfall in the Appalachian Mountains has decreased in recent years and organisms in its streams are thriving. But the environmental comeback could be creating new problems of its own.
11 December 2006, 07:40 AM ET
As the climate warms near Earth's surface, the upper atmosphere is getting less dense, a change that will mean less drag on satellites, scientists announced today.
06 December 2006, 08:02 AM ET
A decade worth of satellite imaging data has shown for the first time that global warming could devastate marine life, scientists announced today.
06 November 2006, 12:00 PM ET
Mimicking gases that may have been present on early Earth in the laboratory, researchers believe that a layer of haze blanketing our planet produced organic material that helped living organisms appear.
19 October 2006, 10:17 AM ET
Droughts and storms will become more intense in the coming century if levels of greenhouse gases in the atmosphere keep rising, new computer models suggest.
18 August 2006, 06:56 AM ET
Increased levels of carbon dioxide may help some trees in battling ice storms.
27 July 2006, 09:27 AM ET
A scientist says we can mimic the effect of volcanoes and shade the whole planet.
06 July 2006, 04:03 AM ET
New propagation techniques allow easy establishment of trees in urban settings.
05 July 2006, 06:58 AM ET
Global carbon dioxide emissions are dramatically altering ocean chemistry and threatening marine organisms, a group of researchers warned today.
15 June 2006, 10:03 AM ET
Large amounts of carbon could be released into the atmosphere if global warming thaws permafrost in the Northern Hemisphere.
11 April 2006, 01:09 PM ET
In the most dramatic of the scenarios, models forecasted a potential loss of 56,000 plant species and 3,700 vertebrate species.
06 April 2006, 04:42 AM ET
Small creatures like this will suffer, scientists say, potentially altering the entire food chain.
14 December 2005, 05:13 AM ET
Trees in the Amazon grow slower and are older than scientists thought, a discovery that has implications for computer models of climate change.