SANTIAGO (Reuters) - A magnitude 6.7 aftershock struck off the coast of Chile on Monday night about 45 miles northwest of Concepcion, which was heavily damaged in an 8.8 magnitude quake on February 27, but the national emergency office said no casualties or damage to infrastructure had been reported. The epicenter of the aftershock was 21.7 miles deep ...

Adding iron to the world's oceans to capture carbon and fight global warming could do more harm than good, as the mineral appears to boost the growth of a plankton that produces a deadly neurotoxin, a study published Monday shows. Researchers led by Charles Trick of the University of Western Ontario in Canada found that fertilizing the ocean with ...

More wet weather was forecast for the West on Sunday, while light snow was expected to stick around in the Northeast and much of the nation's midsection was predicted to be mild. A low pressure system that brought heavy snow and periods of heavy rain to Northern California and the Pacific Northwest was forecast to ...