Opponents say the environmental and social costs of flooding parts of the Amazon outweigh the energy benefits, but the $10 billion Belo Monte project and other Amazon dams hold the promise of clean energy.
05/21/2010 04:16 pm
Global Viewpoint Brazilian President Lula: BRIC countries must forge a transparent system of global governance
Brazilian President Lula weighs in on the BRIC summit where Brazil, Russia, India, and China showed they are committed to building a joint diplomatic and creative approach to world issues.
04/16/2010 04:17 pm
Ash cloud from Iceland's spewing volcano halted air traffic across a wide swath of Europe on Thursday.
04/15/2010 07:49 pm
India, China ended four days of high-level talks in Beijing on Thursday with an agreement to set up a hotline between prime ministers, to better avoid flare-ups over a longstanding border dispute.
04/08/2010 10:24 am
Geoengineering -- intentionally altering Earth's climate to fight global warming -- may be risky science but it must be researched. The watchwords should be caution, openness, international cooperation, and humility.
04/02/2010 01:17 pm
In Pictures April Fools' 2010: Around the world
California's AB32 law will be a costly, but important first step in establishing a green economy.
03/25/2010 10:42 am
In Pictures Flash mobs
US citizen David Headley, who allegedly scouted locations and provided advance support for the 2008 Mumbai terrorist attack, agreed to plead guilty for his role in exchange for avoiding the death penalty.
03/18/2010 08:51 pm
With more people expressing doubts about global warming, passing climate legislation in Congress will be more difficult.
03/08/2010 05:03 pm