Photo: Sections of the Little Colorado River in northern Arizona are ephemeral, flowing most frequently during the spring to accommodate…
Coal ash located at the Possum Point Power Station in Dumfries, Virginia, appears in a photo taken on June 26,…
American bullfrog floating at the surface of a farm pond in Kentucky USA The Trump administration has taken aim at…
Rivers and streams cover more of the Earth than previously thought and therefore play a greater role in controlling concentrations…
Photo: Melissa Erkel, a fish-passage biologist with the Washington Dept. of Fish and Wildlife, looks at a culvert along the…