National parks welcome more than 300 million visitors each year, but less than half of those people actually separate their recyclables from their trash before leaving.
That is one of the findings in the Subaru National Park Survey, conducted in partnership with National Parks Conservation Association. The research ties into this year's celebration of the centennial of the National Park Service (NPS).
Subaru went to three parks – Yosemite, Grand Teton and Denali – to find what kind of waste is being generated and where it is going. The waste characterization study also determined people's sentiments on recycling.