Between 2020 and 2021, the National Park Service estimates that just three major fires killed up to 19% of the world’s giant sequoias, including thousands in the Sierra Nevada region.
Sun hits a cholla cactus in Joshua Tree National Park on Monday, May 25, 2020. A new study says the park is among the top four most polluted in the nation. A couple years ago, as part of the Sierra Club’s Outdoors for All campaign, Roberto Morales took a group of low-income Los Angeles area residents north to Sequoia National Park to help with a forest restoration project.
said weather and geography sometimes can make air quality even worse in our parks than in the neighboring cities where that pollution originates.Joshua Tree, Sequoia and Kings Canyon national parks and Mojave National Preserve regularly have such poor air quality that exposure poses risks to visitors, employees and neighbors — along with the flora and fauna that call these protected places home. Yosemite and Death Valley national parks also rank in the top 10 for most unhealthy air.
Joshua Tree National Park on Monday, May 25, 2020.A new study says the park is among the top four most polluted in the nation. “California just has so many different sources of pollution that it’s going to be harder for the state,” he added.worst air quality, For Morales, whose group aims to help residents escape the smog by getting them into nature, it’s getting harder and harder to find places that offer real relief.Pollution, and the burnt fossil fuels pumping it out, isn’t only harming the health and enjoyment of people who visit, work or live near national parks. Theshows it also is harming plants and animals living everywhere from Channel Islands to Indiana Dunes to Everglades national parks.
Desert soils typically don’t have much nitrogen, McCulloch noted, and native plants have adapted to growing without it, just as they’ve adapted to not getting regular access to water. Since they don’t usually grow close together, or completely dry out during drought, McCulloch said if a lightning strike or other event triggers a fire in these environments, it typically fizzles out pretty quickly, limiting any damage.
Of course, when a major wildfire does break out in the forest or the desert, it makes air pollution much worse. And so the vicious cycle continues.To break that cycle, Rose said we need to rapidly limit emissions from transportation and industrial sectors. That’s why the NPCA has long advocated for improving fuel efficiency in vehicles, for pivoting to electric and other zero emission options, and for state and federal policies that will reduce pollution from coal- and gas-powered plants.
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