Overtapped Oasis analyzes the West's water allocation system from top to bottom and offers dozens of revolutionary proposals for increased efficiency and policy reform. Marc Reisner and Sarah Bates argue that the West's underlying problem is not a shortage of water but the inefficient use of it, a problem caused by a bewildering tangle of federal subsidy programs, restrictive state water codes, anachronistic irrigation practices and — perhaps most important — resistance to reform.