Underground garden in New York City
New York City has been adapting to climate change. Creating 33 millions tons of waste a year its residents were early adopters of recycling. Former Mayor Bloomberg planted one million trees to keep the city cooler in the summer heat and provide a site for excess rain. But it took Hurricane Sandy in 2012 to put it all into perspective when it submerged homes, turned avenues into streams, basements turned into toxic swimming pools and a quarter of the city was without light for a week. And many businesses literally went under. Among plans are legislation to support geothermal heat, and turning city parks into sanctuaries for excess water. And two dreamers on the Lower East Side have a vision for an underground park in an abandoned tramway tunnel where soil and water are plentiful but light is absent.