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onEarth

The planet is our beat.

Spreading Their Wings

Butterflies bred in a Chicago lab are fluttering their way back to Illinois swamps.

Roam, Roam on the Range

This Montana cattle ranch is trying to ensure its operations benefit wildlife—and yes, that means wolves, too.

Watching Over Us

The European Space Agency’s newest satellite has its eye on food security.

Schwinn-Win

The rankings for the 20 most bike-friendly cities are in (and the results may surprise you).

Take Two Levees and Call Me in the Morning

A prestigious medical journal warns of the dangers climate change poses to public health.

Scrubbed but Not Clean

By air or water, pollution from power plants is a problem no matter which exit it takes.