Royal Dutch Shell still plans to start exploration drilling next year in Alaska's potentially oil-rich Chukchi Sea in spite of a new legal setback, a company manager in Alaska said

Developing nations will need at least $267 billion a year by 2020 to fight climate change and adapt to droughts, heat waves and rising seas, according to African nations.

Number of people affected by extreme weather has doubled in 30 years and is expected to reach 375 million a year by 2015.

WASHINGTON - A fugitive animal rights activist believed to be hiding outside the United States has become the first domestic terror suspect named to the FBI's list of "Most Wanted" terrorists.

CA lawmakers fighting to balance the budget put two propositions on the May 19 special election ballot that would yank more than $2 billion from a pair of popular programs that help some of the state's most vulnerable: young children and the mentally ill.

Sri Lanka on Monday gave the Tamil Tiger rebels 24 hours to surrender after thousands of civilians fled the war zone when troops breached an earthen fortification blocking their exit route, the military said.

VIDEO Rewarded by WWF (2008) How long can the Lion roam its kingdom? With lion populations falling fast (recent data shows numbers from 15,000 to 40,000) and man invading its territory, experts feel the lion is in serious trouble.

A severe drought gripping Texas is causing unusually salty conditions along the Gulf Coast, upsetting the region's ecological balance and threatening coastal wildlife including oysters, crabs and whooping cranes, the most endangered crane species.

DENVER - Language as the lifeblood of the people was a key theme in the 2009 Cheyenne-Arapaho Studies Conference held March 19. The conference was part of the second annual "Cheyenne-Arapaho Revisited" reunion of members of northern and southern...

U.S. and Brazilian scientists have discovered that the brain manufactures proteins that act like marijuana at specific receptors in the brain itself.