Black-and-white dog overlooking bighorn sheep in mountain meadow (NPS/A.W. Biel)

‘Bark ranger’ helps park rangers keep animals and people safe

Gracie the border collie brings a special skill set to Glacier National Park: keeping the wildlife living in the park safe from their visitors.
Wildflowers on mountainside (NPS/James Pfeiffenberger)

Five national parks to visit virtually

Can't travel to these five national parks right now? Through a National Park Service partnership with Google, anyone can enjoy nature from their home.

Simple facts of climate change

Climate scientists are in nearly unanimous agreement that the Earth’s atmosphere is getting warmer and will affect the way people around the world live.
Aircraft dropping red substance on fire (© Noah Berger/AP Images)

U.S. sends firefighters to Australia to help fight blazes

The United States is sending firefighters and wildfire specialists to Australia to help fight the fires that have already consumed millions of hectares.

Save our oceans (and score a free poster)

The ocean ecosystem regulates climate, produces oxygen, and feeds about three billion people. But our oceans may not be able to provide these benefits much longer.

Once smog-shrouded, LA has improved its air quality

Over the past few decades, Los Angeles has learned techniques to improve air quality that could benefit other major cities around the world.
Man using smartphones to stop illegal logging (Courtesy of Rainforest Connection)

Mobile phones can surf the Internet, take photos, play music and…protect...

Money doesn’t grow on trees, but timber thievery is thriving. Every year, swaths of forest the size of Panama are cut down. Some of...

Cities as policy labs: New York retools

Find out what makes the largest city in the United States one of the world's greenest, most environmentally friendly cities.

Cities as policy labs: L.A. cleans up its smog

With the largest fleet of natural gas buses in the U.S. — about 2,200 — Los Angeles has become a leader in cutting carbon emissions.