7 more national parks threatened by fire | Grist

California’s massive Rim Fire has now charred more than 192,000 acres, including 45,000 acres in Yosemite National Park. But Yosemite isn’t the only national park facing the threat of wildfires. Across the Western United States, rising temperatures, past fire suppression policies, and invasive species are increasing the fire risk — meaning some of country’s greatest natural treasures could one day go up in smoke.