Matter: Climate Change Is Altering Lakes and Streams, Study Suggests

Like the ocean, fresh water absorbs carbon dioxide from the atmosphere. But the effects are likely to vary widely from place to place.

Global Warming’s Toll on Coral Reefs: As if They’re ‘Ravaged by War’

New research has found that mass bleaching of coral reefs, once virtually unknown, now happens every 6 years on average. That means the reefs don’t have time to recover.

What Eats What: a Landlubber’s Guide to Deep Sea Dining

After studying decades of video footage captured by robotic submersibles, the Monterey Bay Aquarium Research Institute has figured out some basics of the deep ocean’s food web.

Native American Secrets Lie Buried in Huge Shell Mounds

Archaeologists in Maine are working to unearth artifacts buried for centuries in shell middens. But sea levels are rising, eroding the ancient sites.