water prices

In the past few weeks, I have had been asked the same question by reporters, friends, strangers, and even a colleague who posts regularly on this very ScienceBlogs site (the prolific and thoughtful Greg Laden): why, if the California drought is so bad, has the response been so tepid? There is no single answer to this question (and of course, it presumes (1) that the drought is bad; and (2) the response has been tepid). In many ways, the response is as complicated as California’s water system itself, with widely and wildly diverse sources of water, uses of water, prices and water rights,…
Figure 1: Monthly average precipitation showing the seasonality of precipitation in different parts of California, from the iconic California Water Atlas. California has a “Mediterranean” climate, which means that each year it has a concentrated rainy season, followed by a long temperate and dry period. California’s rainy season typically runs from early October to late March, with very little precipitation outside of these months. (Figure 1 shows the average monthly rainfall for California.) It is now early 2014 and the rains have not come, for the third year in a row. While the …