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It’s not just elbow room — it’s a matter of survival. Arizona’s Sun Corridor will double in population by 2040. One of America’s fastest growing areas is also one of its most environmentally-sensitive, increasing pressure on... »

The Delaware River carries a heavy load. Each drop of this river is reused 20 times. And while its footprint is less than one percent of the nation’s land, it provides drinking water to five percent of the nation’s... »

The red knot is an extraordinary flier. In the course of its life, it may migrate farther than the distance to the moon. But it cannot out-fly the threats along its path. The red knot and similar shorebirds are showing the... »