Since 2012, China has invested billions of dollars into protecting people from flooding, including by building cities like sponges. The idea is to use a mix of green and gray infrastructure to soak up heavy rainfall, and then slowly release it into rivers and reservoirs. But recent high-profile weather events have called into question the effectiveness of the strategy against the wild changes in precipitation fueled by climate change. At least 20 people have been killed since Saturday as torrential rain brings catastrophic flooding to parts of northern China, with the death toll expected to keep climbing. Today on CityLab: China's 'Sponge Cities' Are Not Built for Extreme Flood Events -Linda Poon |
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