Water and Food in the Twenty-First Century

  title={Water and Food in the Twenty-First Century},
  author={Ghislain de Marsily and Rodrigo Abarca-del-R{\'i}o},
  journal={Surveys in Geophysics},
In 2000, the World population was 6.2 billion people; it reached 7 billion in 2012 and is expected to reach 9.5 billion (±0.4) in 2050 and 11 billion (±1.5) in 2100, according to the 2012 UN projections (Gerland et al. in Science 346:234–237, 2014). The trend after 2100 is still one of the global demographic growths, but after 2060, Africa is the only continent where the population would still increase. The amount of water consumed annually to produce the food necessary to meet the needs of the… 

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