File of Charles Taber opening the two-week old storm shelter that saved his life in the May 20 tornado in Oklahoma City
Charles Taber opens the two-week old storm shelter where he rode out the May 20 tornado that struck Oklahoma City, Oklahoma in this May 22, 2013 file photo. A warning that Oklahoma may be hit by a major earthquake has caused a run on insurance policies for tremors in a heartland state, adding to the woes of residents who often find themselves in the line of tornadoes and droughts. REUTERS/Rick Wilking/files (UNITED STATES - Tags: DISASTER ENVIRONMENT)
INSIGHT-US billionaire green activist shifts from bomb thrower to team player
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Randgold hopes giant Kibali mine will transform northeast Congo
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WHO finds Indian cities have dirtiest air; Chinese data foggy
1,600 city study shows air pollution has worsened since 2011, especially in poorer nations, raising health risks
Stanford University ending investments in coal companies
The move, aimed at combating climate change, could influence college administrations elsewhere
In electricity, Britain is nostalgic for central planning
Britain is abandoning its market-based model for electricity and opting for much greater state control
China fertile ground for green progress - report
China's massive pollution problems give rise to a new force of environmental campaigners, research finds
U.S. Senate moves to debate energy savings bill, Keystone bid stalls
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Brazil sets final rules for forest use, allows tradable credits
A new land-use database could push farmers to restore a huge amount of illegally cleared native vegetation