The effort to avoid using fresh water and land that's used for food "should be applauded," says Mark Schrock, a professor of biological and agricultural engineering at Kansas State University.

Work will be performed at Lockheed Martin's Undersea Systems facility in Manassas, Va.

Escape to the great outdoors. Whenever she feels stressed, Sandra Bullock heads to her ranch in Texas and enjoys the sights and sounds of nature.