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Thousands of power plants around the world may face severe reductions in their ability to generate electricity by mid-century due to water shortages, according to new research.

Hydro- and thermo-electric (nuclear, fossil-fuelled, biomass-fuelled) power plants are vulnerable to dwindling rivers and reservoirs as the planet warms, a study published in Nature on Monday said.

These technologies, which provide 98% of global electricity supply, depend on abundant water to cool generators and pump power at dams.

Lower river levels and warmer water temperatures could reduce generating capacity by as much as 86% in thermo-electric- and 74% in hydro plants, according to researchers at Wageningen University and the International Institute for Applied Systems Analysis.


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