"China on Friday defended the role played by premier Wen Jiabao at climate change talks in Copenhagen this month after a barrage of international criticism blaming China for obstructing negotiations."

"China is preparing to build three times as many nuclear power plants in the coming decade as the rest of the world combined, a breakneck pace with the potential to help slow global warming."

"Researchers have pinpointed the source of what is probably the worst mass poisoning in history, according to a study published Sunday. For nearly three decades scientists have struggled to figure out exactly how arsenic was getting into the drinking water of millions of people in rural Bangladesh."