Watch Tower · climate-change

Filed by Terra Bloom

Jack Klein takes heat readings, gives fans to overheated passengers and lugs big jugs of water into the stationsOn a recent August day in the subterranean furnace of New York City’s subway, one bearded, curly-haired man was studying his phone for different reasons than the other wilting passengers – to track the soaring temperatures and ponder how underground train stations can cool down in an era of climate crisis.Jack Klein, a 31-year-old construction site manager, has in the past two years ta