Copenhagen is under a double threat from climate change. Rising seas and heavy rainfall mean the risk of #flooding is growing across the city. But Denmark’s capital is fighting back using an approach to urban design pioneered in China: it’s becoming a sponge city. When finished, the project will enable #Copenhagen to soak up and store excess water rather than be submerged by it. Cities around the world are highly vulnerable to the impacts of climate change. The Davos Baukultur Alliance champions