90% of the Dutch city sits below sea level- how the city plans to keep tides out as the climate changes.

Drainage mills, surge barriers, and dykes have traditionally kept water out of the city of Rotterdam, the Dutch city that is 90% below sea level. But as climate changes increasingly bring heavier rains and higher tides, officials are looking to new ways to keep the water out- rooftop gardens, parking garages with underground water storage, and floating communities are among the innovations. Guardian

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