North America's prairies once were home to millions of wild animals. Today, most of that land is farmed or developed, but some grasslands have never been plowed and could be rewilded.
Much of the country depends on water stored and filtered in forests. Fire-scarred watersheds highlight our need for a national wildfire strategy.
Democratic Senator Jon Tester of Montana has a moderate image in a state that doesn't often elect Democrats. But as he faces reelection, his move to torpedo Trump's VA nominee may threaten that image.
Compared to the average US citizen, American Indians and Alaskan Natives live shorter lives and are at greater risk for a number of health problems.
The race pitted a singing cowboy against a millionaire software entrepreneur – and it got ugly at the end.