In southeastern Idaho, within the vast expanse of national forests, wild roadless areas, and blue-ribbon trout streams that make up the greater Yellowstone region, the Smoky Canyon Mine has earned notoriety as one of the area's worst polluters.
Loggerhead sea turtles still climb ashore to nest on Florida's panhandle less than an hour from Panama City, along one of the Sunshine State's last stretches of condo-free coastline. Just inland, in a vast cypress swamp, scientists have reported more than a dozen sightings of ivory bill woodpeckers, thought until just two years ago to be extinct.