For the first time in five years the United States has reduced its greenhouse gas emissions. Greenhouse gas emissions in the world's biggest polluting country fell by 1.5 per cent last year, the first decline since 2001, and only the third reduction since 1990.

The U.N. weather agency reported that greenhouse gases in the atmosphere in 2006 were higher than ever. Carbon dioxide is now contributing more to global warming.

Determining the concentration of carbon dioxide in the ancient atmosphere remains a critical hurdle to understanding Earth surface temperatures, compositional changes in atmospheric chemistry, and the evolution of Earth’s earliest biosphere.

Greenhouse gases likely accounted for over half of the widespread warmth across the continental United States in 2006, according to a new study that will be published 5 September in Geophysical Research Letters, a publication of the American Geophysical Union. Last year's average temperature was the second highest since recordkeeping began in 1895.

U.S. college students could reduce CO2 emissions from the operation of computers by 1.8 million tons this year - the equivalent of taking more than 350,000 cars off the road - by enabling power saving features on their desktop PCs.

Gene Takle begins talks about climate change with some strong statements.

Greenhouse gas emissions from power stations could be cut to almost zero by controlling the combustion process with tiny tubes made from an advanced ceramic material, claim engineers today (3 August 2007).

Scientists have concluded that the global warming trend caused by the buildup of greenhouse gases is a major contributor to the melting of Himalayan and other tropical glaciers. Now a new analysis of pollution-filled "brown clouds" over south Asia by researchers at Scripps Institution of Oceanography at UC San Diego offers hope that the region may be able to arrest some of the alarming retreat of such glaciers by reducing its air pollution.

Materials that change temperature in magnetic fields could lead to new refrigeration technologies that reduce the use of greenhouse gases, thanks to new research at the U.S. Department of Energy's Argonne National Laboratory and Ames National Laboratory.

The "snows" of Africa's Mount Kilimanjaro inspired the title of an iconic American short story, but now its dwindling icecap is being cited as proof for human-induced global warming.

The huge potential of agricultural soils to reduce greenhouse gases and increase production at the same time has been reinforced by new research findings at NSW Department of Primary Industries' (DPI) Wollongbar Agricultural Institute.

Organic fruit and vegetables may be healthier for the dinner table, but not necessarily for the environment, a University of Alberta study shows.