"As water levels plummet to 45% in America's second-largest reservoir, new islands appear - and fears grow for a waterway that serves 40 million people"
"Getting good data on the many issues related to freshwater has long been a challenge. Here you will find data tables from the World's Water series, along with select content from the newest release, Volume 7 (October 2011). For the entire book, order directly from Island Press."