Monsoon Storms, Key To Recharging Groundwater, May Become Less Common

MONSOON STORMS IN the desert Southwest are vital for recharging groundwater – but it now appears likely this recharge effect may be compromised by climate change. The major cities of the Southwest – Phoenix, Tucson, Albuquerque, Las Vegas – currently get most of their freshwater from the Colorado River or its tributaries. That river, however, is experiencing its 19th straight drought year, suggesting a new permanent dry state is gripping the giant watershed