Ecosystem Services

Trees can clean up pollution from tailpipes, smokestacks, and wildfires — but where we plant them matters

Street trees aid urban biodiversity, but mainly in wealthier neighborhoods

Greenlaurel: Solving Baltimore’s vacant lot problem, one wildflower meadow at a time

Natural climate solutions

Hurricanes: enlist nature's protection

Waters of the United States

What makes a healthy stream?

The ‘slow motion crisis’ that’s facing U.S. forests

Beavers: nature’s nitrogen busters

The trouble with sustainability

Beavers take a chunk out of nitrogen in Northeast rivers

Leave leaves alone