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Water insecurity costs global economy billions a year. Floods and drought amid climate change and a lack of investment in reliable water supplies is weighing on the global economy by tens of billions of dollars a year.
China’s thirst for clean drinking water may raise its CO2 emissions. Some coastal cities are planning for desalination, which will spike both their energy needs and their emissions.
Over-consumption, climate change threaten food security, water supply: United Nations. There will be enough water to produce food for 10 billion people in 2050, but over-consumption and the impact of climate change threaten food security and water supplies in many regions.