The contribution of climate change to declining water availability

Table of contents
Toward a world of thirst?ForewordExecutive summary Water and population

1. State of the world’s water

2. Freshwater resources3. Coastal and marine water4. Water and climate change

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The real concern for the future, in the context of changing patterns of rainfall, is the decrease of run-off water which may put at risk large areas of arable land. The map shows how seriously this issue must be taken, while the forecast indicates that some of the richest arable regions (Europe, United States, parts of Brazil, southern Africa) are threatened with a significant reduction of run-off water, resulting in a lack of water for rain-fed agriculture and thus putting millions at risks.

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