Keeping Hong Kong flood-free


The city's complex drainage system protects Hong Kong from once-disastrous flooding caused by seasonal typhoons. But will it be strong enough to withstand the effects of climate crisis?



CNN's James Griffiths on the challenges of building a vast rain water-draining tunnel network in one of the world's densest cities and how well it is prepared for ever-intensifying climate and security threats.

"At present, some rain is collected and reused for irrigation and flushing water, but most is still dumped back into the sea, a bitter situation for a city that imports over 70% of its fresh water from across the border in mainland China," Griffiths writes. "With rising temperatures potentially leading to greater water-insecurity around the world, Hong Kong's ability to do more with the water that literally falls upon it is more important than ever."

Alexander Walter via Archinect - News https://bit.ly/2P4mBvr

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