News Earth

Corals, turfgrass and sediments offer stories of climate past and future

Science News reports from San Francisco at the fall meeting of the American Geophysical Union

By Sid Perkins

- More than 2 years ago

Hawaiian corals could provide ancient rainfall record

REMAINS OF THE DAY The parallel, closely spaced bands on some of these ilmenite crystals are evidence of a high-pressure shock from an extraterrestrial impact.