Competition for water between food production and other uses will intensify pressure on essential resources, the scientists said. The UN predicts that we must increase food production by 70% by mid-century. This will place additional pressure on our already stressed water resources, at a time when we also need to allocate more water to satisfy global energy demand-- which is expected to rise 60% over the coming 30 years--and to generate electricity for the 1.3 billion people currently without it, said the report.
Overeating, undernourishment and waste are all on the rise and increased food production may face future constraints from water scarcity.
We will need a new recipe to feed the world in the future, said the reports editor, Anders Jagerskog.
A separate report from the International Water Management Institute (IWMI) said the best way for countries to protect millions of farmers from food insecurity in sub-Saharan Africa and south Asia was to help them invest in small pumps and simple technology, rather than to develop expensive, large-scale irrigation projects.
Farmem across the developing world are increasingly relying on and benefiting from small-scale,locally-relevant water solutions. These techniques could increase yields up to 300% and add tens of billions of U. S. dollars to household revenues across sub-Saharan Africa and south Asia. said Dr. Colin Chartres, the director general.
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