Scientists photograph atmospheric ripples that followed the March tsunami across the Pacific
Tiny particles ejected from a 2010 volcanic eruption pose big problems.
Carbon dioxide is making the oceans more acidic
In Japan, an earthquake started a tsunami that caused a nuclear disaster
Volcanoes on Venus might be active
Crop irrigation and farming practices could mean a cooler, wetter Midwest
Unexpected rates of warming threaten to change Antarctica and pose a threat to the survival of some of its penguins.
Tropical glaciers are vanishing at an especially rapid pace—and taking valuable climate records with them.
Three scientists travel to Antarctica to explore a secret world hidden beneath the ice.