Red-tails seem as common as turkey vultures at times, but the red-shouldered hawk is far less common thanks to habitat loss.

One-third of the global population is already in danger 20 days per year; by the end of the century, it could be three-fourths.

Surges of wet, icy air are reaching the stratosphere after all, creating polar-like conditions for ozone depletion.

Sometimes the awe of encountering nature comes with a little bit of eew.

The lawsuit settlement is neither a cost-saving move nor a strategic surrender — just a simple giveaway to a foreign corporation that threatens local jobs and communities.

Without a reversal of losses to herbicide-intensive agriculture, the iconic butterfly faces 50-50 odds of disappearing from Midwestern landscapes.

A set of 80 here-and-now, economically viable solutions could add up to one big planetary fix.

Warming causes a glacial river in the Yukon to change course — not over the normal millennia, but in a couple of months.

Perhaps 1,200 turned out in a very big rally to address a very long list of environmental rollbacks and budget cuts.

A small-town editorialist takes Des Moines’ side in a lawsuit against his county for fouling public waters — and against letting the Farm Bureau bankroll the defense — just “because it was right.”

Turns out there are privately owned mineral rights in the land that would be added to Superior National Forest, too.

It is the world’s largest living structure, and two-thirds of it has been damaged since last spring.

Hard to say if the glass is half full or half empty, as the saying goes — but the level of this nonrenewable resource is dropping fast.