The rise of water levels in recent years at Chatfield State Park has led to trees within the reservoir dying off. Gabby ...

A new Colorado State University study of the interior U.S. West has found that tree ranges are generally contracting in ...

This winter, with record snow in New Orleans and drought and destructive wildfires in Southern California, has not been normal.

In December, the Federal Highway Administration awarded the first grants under a new $125 million Wildlife Crossings Pilot ...