Earth

Chemistry

A plant enemy’s enemy

Plants use chemicals to recruit help in fighting off pests.

Agriculture

Cool Jobs: Green Science

In parts of the Arctic, entire forests are creeping northward. Luckily, ecologist Serge Payette is hot on their trail.

Environment

Bad for breathing

New study connects pollution to several common diseases that affect the lungs and airways.

Ecosystems

Predators as climate helpers

In lakes and streams, fish and insects can help protect aquatic plants that gobble up greenhouse gas.

Earth

Ahead of the wave

Scientists are working to predict — and tame — the tsunamis that can threaten some coastal communities

Climate

Explainer: El Niño and La Niña

Climate

Climate’s troublesome kids

The recurring climate events El Niño and La Niña trigger long-lived changes to weather around the world.

Earth

Piercing a buried polar lake

Researchers in Antarctica drilled through a half-mile of ice to reach water that hasn’t had contact with the atmosphere for thousands of years.

Earth

Surprising hot springs

Scientists find shallow source of water for volcano’s hot springs.

Earth

Less ice, more seawater

Shrinking ice sheets contribute to rising sea levels, large-scale study confirms.

Environment

Trees on the edge

Serious drought is a threat to most trees, worldwide survey finds.

Climate

Twister science

Meteorologists are learning what makes a tornado.