Volcanic islands, such as the islands of Hawaii and the Caribbean, are surrounded by coral reefs that encircle an island in a ...

A look at Libya’s Great Man-Made River project, an ambitious engineering feat that brought vast underground water supplies ...

It was still 115 degrees outside, so the group chose to meet in the air-conditioned lobby of Maricopa City Hall.  Students, ...

The Southwest and Rocky Mountain states are reviewing a plan that could split Colorado River water based on actual flows, not ...

Climate change is having devastating effects all over the world, including on this iconic American River whose troubled ...