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Freshwater stress and risk

Freshwater stress and risk

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Uploaded 22 Feb 2012 by GRID-Arendal
Year: 2005
From collection: Vital Climate Graphics
Author: Philippe Rekacewicz, UNEP/GRID-Arendal
Description:
One study suggests that although global water conditions may worsen by 2025 due to population pressure, climate change could have a net positive impact on global water resources. NB! Note that other studies indicate that with present consumption patterns, 2 of every 3 persons on Earth will experience water stress by 2025. The diagram on the left side shows the result of this particular study, indicating the water availability for the population. It should be noted that the study is based on runoff characteristics obtained for one particular climate scenario. Another macroeconomic study (not shown here) based on three climate scenarios led to similar conclusion for the Asian continent while suggesting that in Europe changed climate conditions will be associated with some decrease per capita water availability. The diagram on the right-hand side shows a projection of the population living in increased and decreased water stress under three different CO2 emission scenarios in the 2 ...
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