
More than half the world’s population faces water scarcity for at least one month every year. Meanwhile, some people have to deal with too much water, while others have access to only poor water quality. That’s billions of people living with drought in Africa and India, facing flood risks in Bangladesh or lacking clean water due to excessive fertilizer use in the United States, Brazil, China and India.
Climate change exacerbates global water insecurity because it contributes to more frequent and severe droughts, floods and extreme rainfall, accelerated glacier melt, rapid declines in groundwater and the deterioration of water quality. These water-related risks of climate change have negative repercussions for agriculture, energy production, water infrastructure and economic productivity, as well as human health, development and well-being around the world.