NYT: the heat beneath our feet

Dear friends,

Read too much about scorching heat and floods lately? Try taking a few minutes to ponder another kind of climate change, one unfolding underneath big cities around the world. Yes, humans are responsible, but not for the usual reasons.

Here’s the story, on the front page of Wednesday’s NYT, which a photographer and I reported from some dark, dirty, and warm places in underground Chicago.

Ray