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onEarth

The planet is our beat.

One Tree, Two Trees, Three Trees…

A new study tells us how many trees there are (and how many we’ve cut down).

Late For a Very Important Date

Climate change is making pollen and pollinators miss each other.

Kotzebue Calling

President Obama’s trip to the Arctic will reveal some cold, hard truths about the fossil-fuel industry’s impact on Alaskans.

Into the Abyss

Watch a deep-sea expedition live.

Not-So-Vacant Lots

From birds to trees to rats, post-Katrina New Orleans is a study in “disaster ecology.”

The Speed Sweet Spot

Not too fast, not too slow—how driving speed and free-flowing traffic can lower the carbon emissions from our tailpipes.