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onEarth

The planet is our beat.

Road to Preservation

Why are mule deer being blindfolded, sent up in helicopters, and having their teeth pulled? It’s all to track and conserve their migration routes.

EPA: Keystone Fails on Climate

In a letter to the State Department, the U.S. Environmental Protection Agency warns of the pipeline's hefty carbon contribution.

Tuna Time Bomb

A new study says the mercury levels in tuna are high—and getting even higher.

The Dusty City

Chicago is trying to limit how much petcoke the tar sands industry moves (and spreads) around town.

Fantastic Fox

For the first time in nearly 100 years, a Sierra Nevada red fox is spotted in Yosemite.

A Businessman, a Bad Plan, a Canal

The Nicaragua canal threatens the largest freshwater lake ecosystem in Central America.