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How to Melt Snow to Drink
World-class mountaineer Heidi Howkins always brings a black foam sleeping pad when she heads into the high peaks. "In the morning, I set it up on sloped rocks so it's like a gutter, and I put a pot at the bottom," she says. "Then I sprinkle snow on the pad, and it melts in the sun—it's a great way to melt water without wasting fuel."
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