Environment / StudentNation / As climate change leads to record rainfalls, the city’s 120-year-old subway system is more vulnerable to flooding than ever. Ilana Cohen This story was produced for ...

Forbes contributors publish independent expert analyses and insights. Melissa is a writer based in Brooklyn. New York’s Metrocard is about to join the subway token as a transit relic from the past.

The New York City subway system has faced many challenges in its more than a century of existence, but now there's another -- torrential rain storms that seem to pop up out of nowhere. In this edition ...