The largest and most ambitious tornado study in history will begin next week, as dozens of scientists deploy radars and other ground-based instruments across the Great Plains to gain a better understanding of these often deadly weather events.

The system tested recently in the Detroit area will ultimately help protect drivers from surprises such as black ice, fog, and other hazardous weather conditions ahead.

Rivers in some of the world's most populous regions are losing water, according to a new comprehensive study of global stream flow.