National Climate Assessment: Climate Change Impacts in the United States - Chapter 20 Southwest
Author:
Hilda, B., Comrie, A., Gonzalez, P., Piechota, T., Smyth, R., Waskom, R.
Date Published:
2014
Description:
The Southwest is the hottest and driest region in the United States, where the availability of water has defined its landscapes, history of human settlement, and modern economy. Climate changes pose challenges for an already parched region that is expected to get hotter and, in its southern half, significantly drier. Increased heat and changes to rain and snowpack will send ripple effects throughout the region’s critical agriculture sector, affecting the lives and economies of 56 million people – a population that is expected to increase 68% by 2050, to 94 million.1 Severe and sustained drought will stress water sources, already over-utilized in many areas, forcing increasing competition among farmers, energy producers, urban dwellers, and plant and animal life for the region’s most precious resource.
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