![]() ![]() Under a more likely, drier climate, there is less than a 20% chance of full overdraft recovery over a 20-year period following a drought. ![]() However, this best-case scenario where California has six to eight consecutive wet years is not likely because of the state's increasingly hot and dry climate. Under a best-case scenario where drought years are followed by consecutive wet years with above-average precipitation, the researchers found there is a high probability it would take six to eight years to fully recover overdrafted water, which occurs when more groundwater is pumped out than is supplied through all sources like precipitation, irrigation and runoff. The new study shows groundwater storage recovery has been dismal after the state's last two droughts, with less than a third of groundwater recovered from the drought that spanned 2012 to 2016.
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