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What a ‘sponge city’ designed to withstand extreme flooding looks like: After extreme flooding in cities of China in 2012, urban designer Yu Konjian coined the term ‘sponge city’ as one solution to climate change. Lisa Abend writes for Time: “Instead of paving over the land with impermeable concrete and asphalt, he proposed adding green spaces that could act like sponges and absorb excess rain water.”  Abend writes that cities aren’t built for extreme weather conditions; that building with asphalt and concrete increases heat and gives water nowhere to go. Konjian’s alternative would allow the natural flow of water in green spaces. In Australia the term ‘water sensitive urban design’ is more commonly seen than ‘sponge city’, associated with techniques to ease flooding or “filtering and storing rainwater so that …