Thousands of events are scheduled across the globe to celebrate Earth Day on Tuesday, April 22. Here's a handful happening in ...

The San Antonio area was named the national champions in a city nature challenge that observes plants and animals around us.

There are 30 national parks near Phoenix that are all less than six hours away, making it an excellent home base for ...

Since its founding on August 25, 1916, the U.S. National Park Service has assembled 419 protected units, of which 62 hold the ...