Climate

Oceans

Sea changes

Carbon dioxide is making the oceans more acidic.

Environment

Lakes, too, feel global warming

Climate

Explainer: Global warming and the greenhouse effect

Like the glass-walled greenhouses used to grow out-of-season plants, certain gases in Earth’s atmosphere trap the sun’s energy near the planet’s surface. This keeps Earth warm enough for life to flourish.

Environment

Getting the dirt on carbon

The circle of life continues thanks to the carbon cycle.

Climate

In Antarctica watch the heat (and your step)

Behind the scenes: news detective.

Earth

A feverish world

The second of a two-part series on climate change.

Animals

Polar bears in trouble

Melting ice is bad news for polar bears that live in northern Alaska.

Climate

The best defense is a good snow fence

Science fair superstar Erica David shows how fences that trap snow can help the environment.

Climate

Catching some rays

In a world with increasing energy needs, scientists are turning to plants for help in using solar power.

Climate

A stormy history

The number of severe hurricanes in recent years may be normal, it turns out.

Climate

Earth’s poles in peril

Scientists are paying increased attention to changes in Earth's polar regions, which are in danger because of global warming.

Climate

Hot summers, wild fires

Rising temperatures and earlier snowmelts in the western United States have intensified forest fires.