Super crops won’t be enough – the planet will run short of food by 2030 unless we invest to avoid an imminent world water crisis, says Colin Chartres. A few years ago, my organisation, the International Water Management Institute (IWMI), demonstrated that many countries are facing severe water scarcity, either because insufficient fresh water is available or because they lack investment in water infrastructure, such as dams and reservoirs. What makes matters worse is that this scarcity predominantly affects developing countries where the majority of the world’s 840 million under-nourished people live.

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