A rich dataset for the United States showing the water footprint of production per economic sector at state level and at county level (for some sectors), and distinguishing between surface water footprint and groundwater footprint. The different sectors included are crop production, livestock, aquaculture, mining, thermoelectric power production, and commercial, industrial, and institutional production.
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Reference: Marston, L., Ao, Y., Konar, M., Mekonnen, M.M. & Hoekstra, A.Y. (2018) High-resolution water footprints of production of the United States, Water Resources Research, 54(3): 2288-2316