Global water demand (in water withdrawals) is projected to increase by 55% by 2050, mainly because of growing demands from manufacturing (400% increase).
Global water demand is projected to increase by 20 to 30% per year by 2050.
Power plant cooling is responsible for 43% of total freshwater withdrawals in Europe (more than 50% in several countries), nearly 50% in the USA, and more than 10% of the national water cap in China.
90% of global power generation is water-intensive. ( UN, 2014).
The food production and supply chain accounts for about 30% of total global energy consumption.
However, it has been estimated that 41% of current global irrigation water use occurs at the expense of environmental flow requirements. ( FAO 2020)
In sub-Saharan Africa, irrigated areas are expected to more than double by 2050, benefiting millions of small-scale farmers.
Water-harvesting and water conservation techniques could boost rainfed kilocalorie production by up to 24% and, if combined with irrigation expansion, by more than 40%.
While almost 800 million people are currently hungry, by 2050 global food production would need to increase by 50% to feed the more than 9 billion people projected who live on our planet ( FAO/IFAD/UNICEF/WFP/WHO, 2017).
It typically takes between 3,000 and 5,000 litres of water to produce 1 kg of rice, 2,000 litres for 1kg of soya, 900 litres for 1kg of wheat and 500 litres for 1kg of potatoes.
72% of all water withdrawals are used by agriculture, 16% by municipalities for households and services, and 12% by industries.
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