Just How Ridiculously, Hellishly Hot Are New York City’s Subways? Jack Can Tell You.

This story was originally published by the Guardian and is reproduced here as part of the Climate Desk collaboration. On 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…