76 women on a glacier are changing the world

Heidi Steltzer’s job, as she puts it, is “hiking where no one else will go.” As a mountain and polar ecologist studying rare plants, she’s accustomed to traveling to breathtaking Arctic vistas to chase flora along mountain ridges. But watching glaciers calve on her first trip to Antarctica last December was a one-of-a-kind experience for the scientist. “You kind of want...

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