Why parts of America are 'certainly in a water crisis' and what can be done about it

As pollution, engineering, population growth and climate change pose challenges to freshwater quality and quantity in America, the safety and amount of water in parts of the U.S. is in question.

Environmental experts told ABC News about the future of water in America and problems the country is facing now.

Where is America's water crisis?

"The American West is certainly in a water crisis," Reed Maxwell, a professor and researcher at Princeton University, told ABC News. Maxwell has been studying the distribution of freshwater resources in the hydrologic cycle with...