A U.S. Senate compromise bill aimed at battling global warming would cut emissions of greenhouse gases 17 percent by 2020, according to a summary given to senators and obtained by Reuters on Tuesday. The legislation, being offered by Democratic Senator John Kerry and Independent Senator Joseph Lieberman, faces a tough battle for passage in the…

The Galeras volcano in southern Colombia erupted on Saturday, shooting rock and ash and prompting authorities to order the evacuation of about 8,000 people. No one was killed or injured in the eruption. But officials warned that the volcano could remain volatile.