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onEarth

The planet is our beat.

Put Carson on the $20

There's a campaign to put a historic female figure on paper currency. The competition is tough, but environmentalists have a clear favorite.

An Argument of Degree

An IPCC author assails the two-degree target as scientifically bankrupt and geographically biased.

NOX It Off!

Thanks to stricter emissions rules, one foul gas is on the downswing.

Sand Hustle

A global construction boom has spawned an explosion of illegal sand mining.

The Promised Lands

Which countries are ready for November’s climate summit in Paris? Track the world’s carbon commitments as they roll in.

Bad Influence

Scientists call on science museums to dump climate deniers.