California is experiencing an extreme drought--by some measures the deepest in more than a century. NASA researchers are investigating the underlying causes as satellites, aircraft, and high-altitude balloons collect sobering images of the desiccating landscape.
VIDEO: http://www.youtube.com/watch?v=e5HwRXsw2Q8
FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2014/07feb_drought/
