Livestock struggle to survive, and dairy and meat production plummets. In regions like the Po Valley and the Murray-Darling Basin, entire communities are now facing an uncertain future.

Understand the impact of climate change on Hoover Dam and its hydropower generation capacity in the Colorado River basin.

The U.S. Army Corps of Engineers, which operates and maintains McAlpine, calls it a "marvel of engineering" — allowing safe passage through the Falls of the Ohio, the only natural obstruction on the ...