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

Allie Walker
Allie Walker on May 15, 2012. @NYC_Allie

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