Clean up the Most Polluted U.S. National Park

Target: Michael T. Reynolds, Acting Director of the National Parks Service

Goal: Draw down levels of air pollution in Sequoia National Park

Sequoia National Park is one of the United States’ most beautiful natural landmarks, known for its massive sequoia, or redwood trees. However, it is also, according to a 2015 study conducted by the National Parks Conservation Association (NPCA), the most polluted of America’s national parks: In terms of ozone pollution and haziness, Sequoia National Park scored the worst on a report card listing the top 12 national parks most harmed by air pollution.

Ozone, a pollutant that harms both humans and wildlife, was found in alarmingly high quantities in the park, causing it to receive an “F” grade for healthy air, according to the study. In terms of clear visibility — or how badly the park is affected by pollutants causing haziness — the park scored a “D.” By 2015, the visibility, and hence the actual views and vistas in the park, had been reduced from a natural visibility of 148.6 miles to just 58.1.

There are known, proven, and effective methods whereby ozone and other air pollutants can be drown down from ambient air. These include vapor recovery nozzles installed at gas pumps and other exhaust infrastructure, laws limiting emissions and the use of solvents in residences and factories, cleaner-burning fuels, and the electrification of transport in urban areas.

Towns and cities nearby Sequoia National Park can and should work to reduce their emissions of ozone and other air pollutants. Sign the petition bellow to demand that the government increases regulations in order to save this park from pollution.


Dear Director Reynolds,

Please pressure your local, state, and national governments to clean up air pollution in Sequoia National Park by reducing the emissions of harmful air pollutants in nearby areas.

In 2015, The Guardian reported that, “Ulla Reeves, the manager of the NPCA’s clean air campaign, maintains that if enforcement for the regional haze program isn’t improved, only 10 percent of the national parks will have clean air in 50 years.” In the same article, The Guardian noted that by year 2015, the visibility in Sequoia had been reduced from a natural visibility of 148.6 miles to just 58.1 miles.

Sequoia is one of the United States’ great natural treasures. It must be protected from air pollution.


[Your Name Here]

Photo credit: Jane Richardson

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  1. Gen Lovyet Agustsson says:

    clean up the trash right now.

  2. Carol Green says:

    Let’s see… in the summer of 2015 Sequoia National Park and the surrounding areas was almost totally engulfed in raging-out-of-control forest fires for over a month. Do you think that had anything to do with the reduced natural visibility? I’d personally feel better about signing this petition if you didn’t use scare tactics and propaganda such as the report quoted in your petition.

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