Bob Stuber of the Michigan Hydro Relicensing Coalition, a collection of hunting and fishing groups which advocates for ...

Chinese hydroelectric power plans in Tibet threaten to destabilize the Himalayan region’s ecology and politics.

Question: Why does concrete get hot when it is curing? Answer: Simply put, water plus aggregates (gravel, sand, stone), plus cement (such as Portland cement) start a chain of chemical reactions called ...

Happy Statehood Day, Arizona. From Stevie Nicks and the Colorado River to creosote and Camelback Mountain, here's why we love the Grand Canyon State.

Lake Mead is named for the man who oversaw the construction of the Hoover Dam and was a trailblazing pioneer of water ...