Water Footprint Benchmarks for the United States
Abstract
Water is a fundamental input in a wide range of economic activities that support our way of life, ranging from the food we eat, the energy we use to power our homes, and the many consumer goods we purchase. Predicted population growth and an improved standard of living will necessitate greater economic production, which will place additional strain on critical water resources. Realizing this, and acknowledging that many areas already face significant water stress and/or overexploitation, there have been persistent calls to reduce water use to more sustainable levels. One frequently proposed means to do this is to determine water footprint benchmarks based on the most efficient water users within each economic industry. These benchmarks can be used by a given industry, or for a given production process, to guide toward reasonable and more sustainable levels of water use. This solution elicits an obvious and, until now, unanswered question: for a given industry, what is considered a 'reasonable' use of water? Here, we answer this question using a new water footprint database that provides industry-level detail (over 500 industries and products) and spatially explicit water withdrawal and consumption estimates per unit of production for the United States. We set water use benchmarks for each industry based on water-use efficiency levels achieved by others in the industry facing similar constraints. In doing so, we highlight specific industries and locations in the United States that could significantly reduce their water footprint by utilizing existing water management strategies and technologies.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2018
- Bibcode:
- 2018AGUFM.H33R2307M
- Keywords:
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- 1834 Human impacts;
- HYDROLOGYDE: 1847 Modeling;
- HYDROLOGYDE: 1880 Water management;
- HYDROLOGYDE: 1884 Water supply;
- HYDROLOGY