How Hong Kong protects people from dangerous landslides


After deadly landslides in the 1970s, Hong Kong has pioneered a successful landslide risk mitigation approach. Geotechnical engineers have cataloged over 60,000 slopes and upgraded those that needed it. The most successful aspect of the mitigation approach has been an early warning system that uses a combination of data sources to determine the risk of landslides and broadcasts warnings over TV, radio, and other public sources. Deaths from landslides have dropped substantially and it has inspired similar early warning systems around the world.

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