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NY Times--The Dust Bowl Returns                                                                                                        snip--We fretted over the anomalous weather, to be sure. A high-pressure system parked off the Alaskan coast had produced not just our high temperatures but also soaring levels of fine particulate matter in the air and more than 50 rainless days, worsening a three-year drought, the most severe in half a millennium. If it’s this bad in January, we wondered, what’s it going to be like in July? But then we’d return to the beer taps, or meander over to peruse food truck menus.


  Life in the Central Valley revolves around two intricately related concerns: the quality of the air and the quantity of the water. Although Fresno is the state’s fifth-largest city, it is really just a sprawling farm town in the middle of the nation’s most productive agricultural region, often called “America’s fruit basket.” Surrounded by mountains, which trap the pollution created by a surging population, interstate transportation and tens of thousands of farms, the valley has noxious air, even on good days.


  The political atmosphere surrounding crop irrigation is equally toxic. Some farms in the western Valley — crippled by cuts in water allocations, salt buildup in the soil and depleted aquifers — now resemble the dust bowl that drove so many Tom Joads here in the 1930s. Farmers line highways with signs insisting that “food grows where water flows,” while environmentalists counter that the agriculture industry consumes 75 percent of the water transported by California’s byzantine water system.


  Well, guess what !!     Snip--Experts offer dire warnings. The current drought has already eclipsed previous water crises, like the one in 1977, which a meteorologist friend, translating into language we understand as historians, likened to the “Great Depression” of droughts. Most Californians depend on the Sierra Nevada for their water supply, but the snowpack there was just 15 percent of normal in early February. And the dry conditions are likely to make the polluted air in the Central Valley — which contributes to high rates of asthma and the spread of Valley Fever, a potentially fatal airborne fungus — even worse.