Stepping Up Efforts to Address Water Issues
As recognized by the World Economic Forum at Davos earlier this year, water insecurity is one of the greatest risks facing the world today. Increased water demand from growing populations and economies, combined with more uncertainty in supply due to expected climate change impacts, require a radical change in the priority we give to managing our water resources and systems to supply water to people. Over the next two decades, water will be needed to feed a planet of 9 billion people and generate energy to meet increased demand.

Concentrated solar power (CSP) systems are a great promise for renewable energy at scale. But they can use a lot of water, which is a problem since they tend to be located in places where water is scarce. Some concentrated solar technologies need to withdraw as much as 3,500 liters per Megawatt hour (MWh) generated. This compares to 2,000 liters/MWh for new coal-fired power plants and 1,000 liters/MWh for more efficient natural gas combined cycle power plants.
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The world commemorated World Water Day on March 22 with events around the globe focusing on ways to make international cooperation happen in the water. Events held in celebration of the Day covered all aspects of water - from water supply and sanitation, to water and its nexuses with food and energy, water resources management and water and climate change. But in most, if not all of these events, one theme was clearly cross-cutting: the importance of strengthening partnerships to leverage knowledge and facilitate innovative solutions.
