Europeans should pay for water as they use it -- rather than forking out a one-time user fee -- to encourage efficiency and help stave off water scarcity and droughts, the European Union said Wednesday.

The world's richest corporations and finest minds spend billions trying to solve the problem of carbon emissions, but three fishing buddies in North Wales believe they have cracked it.

If motorists used rechargeable "plug-in" hybrid-electric vehicles in large numbers, the U.S. could see a significant drop in greenhouse gas emissions by the middle of the century, says a study released Thursday.

A new report says that the current drought is a warning of things to come.While global warming is getting rock-star treatment because of Saturday's global Live Earth concerts, growing concerns over freshwater supplies are quietly making waves this summer.

Palm oil companies are burning peat forests to clear land for plantations in Indonesia's Riau province, despite government pledges to end forest fires, environment group Greenpeace said on Thursday.

China said Tuesday it was winning the struggle against encroaching deserts, with the threat to vulnerable land steadily decreasing over the past half-decade.