Hungry microbes feasting on spilled BP oil caused a drop in oxygen levels in the Gulf of Mexico, but did not create a marine “dead zone” near the wellhead, U.S. scientists reported on Tuesday. The amount of oxygen decreased by 20 percent from the long-term average in areas where oil from the broken BP Macondo…

Melting glaciers, more humid air and eight other key indicators show that global warming is undeniable, scientists said on Wednesday, citing a new comprehensive review of the last decade of climate data. Without addressing why this is happening, the researchers said there was no doubt that every decade on Earth since the 1980s has been…

Seventy percent of firms with revenue of $1 billion or more say they plan to increase spending on climate change initiatives in the next two years, a global survey reported on Tuesday. Nearly half of the 300 corporate executives who responded to a survey conducted for the accounting and consulting giant Ernst & Young said…