via DL ("In Water: The Epic Struggle for Wealth, Power and Civilization, journalist Steven Solomon argues that water is surpassing oil as the world's scarcest critical resource...water's cost doesn't reflect its true economic value."). Here's a TV interview:
He says end subsidies and require that water taken out of the environment be returned in the same quality ("the golden rule"), but he fails to answer reporters' questions ("what do I do?") because most of our water problems are not individual behavior problems but rational responses to bad policies -- some of which are bad on purpose. He does say "politics," so we're on the right track.