Climate change made the Arctic greener. Now parts of it are turning brown.

Warming trends bring more insects, extreme weather and wildfires that wipe out plants

Alaska landscape

TUNDRA IN TROUBLE  In southern Alaska in 2012, geometrid moths and other insects heavily defoliated alder bushes and other shrubs (brown patches in this aerial photo).

U.S. Forest Service

The Chugach people of southern Alaska’s Kenai Peninsula have picked berries for generations.