Natural DisastersMay 22, 2017
Glass Spheres Forged by Volcanic Lightning Offer Clues about Eruptions
Scientists have developed a safe and cost-effective way to study what happens inside volcanoes
Stories by Dave Berndtson
EnvironmentApril 19, 2017
International Food Crops Could Vanish as Groundwater Disappears
About 11 percent of nonrenewable groundwater is used to irrigate internationally-traded crops