A map of water stress by country by 2020.

The World Resources Institute used an ensemble of climate models and socioeconomic scenarios to rank future water stress globally. Notwithstanding the uncertainties inherent in their methodology, the results align with intuition; countries with a trend toward greater water demand than supply are setting themselves up for water stress. Tragically, many of the countries at the head of the list are already experiencing strife and turmoil...

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