The sun glows above layers of clouds and patches of water far below.

A small boat lists on choppy ocean waves.

Three towers of the Angkor Wat temple rise into a cloudy twilight sky.

The George Washington Bridge spans the Hudson River.

American flags hang above a wet street where pedestrians pass in New York City.

Waterfalls pour from melting glaciers.

Passing clouds cast shadows on a grassy hillside.

Drifting clouds cast shadows on desert mountains.

Drifting clouds cast shadows over desert mountains.

Fluffy clouds float over an evergreen forest.

Pedestrians walk past street vendors selling clothing on a rainy day.

Villagers walk past street vendors on a rainy day.

White clouds streak above snow-dusted peaks in Alaska.

The Arctic Ocean flows near ice-covered mountains in Alaska on a partly cloudy day.

Steps lead to the entrance of a church in France.

Arctic Ocean seawater splashes around rock formations in Alaska.

Spectators in period clothing cheer from a rooftop during a reenactment of a Roman blood spectacle.

Cirrus clouds float above the Corinthian columns of the Pantheon in Rome, Italy.

Climate change terms

Le Deux Alps

Evergreen trees grow on steep, snow-covered peaks.

Deep snow blankets high mountains where a herd of animals gallops across a ridge.

Snow dusts rugged cliffs.

A golden sun casts dusky light over the ocean's horizon.