Girl Planting seeds

As groundwater depletes, arid American West is moving east

Even under modest climate warming scenarios, the continental United States faces a significant loss of groundwater—about 119 million cubic meters, or roughly enough to fill Lake Powell four times or one quarter of Lake Erie, a first-of-its-kind study has shown. The results, published today in Nature Communications, show that as warming temperatures shift the balance between water supply and demand, shallow groundwater storage can buffer plant water stress—but only where shallow groundwater connections are present, and not indefinitely. As warming persists, that storage can be depleted—at the expense of vital connections between surface water, such as rivers, streams and water reservoirs underground.  Read more.....

 

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