This year's storms won't erase looming drought worries across the entire southwestern U.S., experts fear. Of particular concern are the giant reservoirs of the Colorado River basin, Lakes Mead and ...

Its 10,000 hydrothermal features—steamy vents, sulfurous mud pots, hot springs—support ... Yellowstone's Upper Geyser Basin. Geysers are formed when underground water meets superheated rock ...

Warm Atlantic waters are rapidly reshaping the Siberian Arctic, sparking an era of unprecedented sea ice loss—something that will have ongoing implications for the region’s ecosystem and climate, says ...