News & Events

China’s ‘sponge cities’ aim to re-use 70% of rainwater – here’s how

Share this Post:

Asian cities are struggling to accommodate rapid urban migration, and development is encroaching on flood-prone areas. Recent flooding in Mumbai was blamed in part on unregulated developmentof wetlands, while hastily built urban areas are being affected by flooding across India, Nepal, and Bangladesh.

 

This is not a trend only in developing countries; floods in Houston, USA, highlighted the risks of development in environmentally sensitive and low-lying areas. In 2012, a severe flood in Beijing wreaked havoc on the city’s transportation systems, and in 2016 floods overwhelmed drainage systems in Wuhan, Nanjing, and Tianjin.

 

The challenges are clear. by Asit K. Biswas, National University of Singapore and Kris Hartley, Cornell University Groundwater over-extraction, waterway degradation, and (...)

 

Read more on Construction21