Trade-offs between water for food and for curbing climate change

submitted by Samuel Bendett

homelandsecuritynewswire.com - September 4th, 2012

Earth’s growing human population needs fresh water for drinking and food production. Fresh water, however, is also needed for the growth of biomass, which acts as a sink of carbon dioxide and thus could help mitigate climate change. Does the Earth have enough freshwater resources to meet these competing demands?

An American Geophysical Union release reports that J. Rockström and colleagues, in their recent study, estimate the order of magnitude of freshwater consumption needed to feed a population of nine billion people by 2050 and the amount of water needed to realize the planet’s full biomass carbon sequestration potential.

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