Projecting Warming induced groundwater losses across the US
Using a high-resolution groundwater surface water model for the US we quantify the groundwater losses caused by increased plant water use in a warmer future. Warming results in increased aridification in North America and reduced groundwater surface water connections. When shallow groundwater is present it can buffer plant water stress but not indefinitely. Once this storage is depleted it does not easily recover. In the western US where groundwater is already deeper, there is a weaker connection between warming and storage loss.