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I’m a dragon wrangler. Although that might sound like something straight out of Harry Potter or Game of Thrones, this isn’t fantasy—it’s serious science.

I t wasn’t that long ago that GM ran commercials advertising that its Oldsmobile division didn’t just produce cars for your grandfather, but also for everyone else. It was an attempt to reinvent the brand’s staid image—and it didn’t work.

As more coal-fired power plants are retired, industry workers are left without many options. There is a light at the end of the tunnel, though.