Environment

Residents were ordered to evacuate overnight after creeks and reservoirs flooded, and won't be allowed home for at least another day.

An overview of multiple legal challenges and protests since the U.S. Army Corps of Engineers considered approving a section of the pipeline near the Standing Rock Sioux Reservation in North Dakota.

A warmer climate is melting an ice road on Lake Superior that usually forms in the winter. But increasingly, the ferry connecting an island on the lake with the mainland must run year-round.

The idea of plumes of moisture curling above our heads might seem beautiful, but new research shows atmospheric rivers to be among the most damaging of weather systems.

China produces 520,000 tons of garbage a day. To get rid of it, the government favors burning it, which harms the environment. One answer: sorting garbage and recycling. But that's proved challenging.

A team of scientists is flying the globe to track greenhouse gases in the atmosphere. We join a crew over the Arctic as they measure things they say computer models could never pick up.

Reindeer are thought to face a grim future as climate change threatens lichen, a key winter food source. But on one Alaskan island, reindeer have found a new food source, making scientists hopeful.