National trash: Reducing waste produced in US national parks

June 25, 2019

When you think of national parks, you might picture the vast plateaus of the Grand Canyon, the intricate wetlands of the Everglades, or the inspiring viewscapes of the Grand Tetons. You probably don't envision 100 million pounds of mashed water bottles, barbecue-smudged paper plates, and crumpled coffee cups - but that is the staggering quantity of garbage that is generated in our National Parks each year. And handling that amount of waste is becoming a huge problem.

The quantity of waste produced and how park visitors dispose of it (recycling some materials) is a growing concern for park managers. Handling park waste costs money, involves significant effort, and requires human and natural resources that tax parks to the extreme. And with numbers of visitors increasing, managers are looking for strategies to increase diversion of recyclable materials from landfills and reduce the overall amount of waste produced in national parks.

"Many park managers prefer to take a light-handed approach to these kind of challenges - using strategies like better communication rather than enforcement," said Zach Miller from the Institute of Outdoor Recreation and Tourism at USU, and lead author on recently published research on this topic. "This style of management requires fewer resources, leaves visitors happier, and matches the independent park experience people are seeking in these places."

Waste management has been studied in urban settings, but it is new territory for national parks. That's why the Leave No Trace Center for Outdoor Ethics, the organization leading the Zero Landfill Initiative research project, reached out to Miller and Dr. Derrick Taff at Penn State University to collaborate on studies in three national parks to better understand what kinds of strategies might work to reduce the amount of waste generated in parks while also diverting more recyclable materials away from landfills.

Yosemite, Grand Teton, and Denali National Parks were used as field sites for this study. These iconic parks host millions of visitors each year, and offer stunning flora and fauna, iconic viewscapes, and historic park infrastructures. Each park unit faces unique waste management challenges, and different waste processing and diversion processes (e.g. single stream recycling, source separated recycling, etc.).

There are definable reasons people choose to drop their soda can in a recycling bin rather than a trash can ... moral beliefs, peer pressure, convenience ... and reasons people choose not to recycle. In the survey, Miller and colleagues worked to pinpoint exactly what held people back. They found two issues that had a significant impact on behavioral intentions related to waste: moral norms and perceived difficulty.

"Perhaps the most important finding from this research is that people's perceptions and reported behaviors are largely in line with proper disposal of waste and recyclable materials," said Ben Lawhon, lead researcher with the Leave No Trace Center. "Many visitors are predisposed to be environmentally responsible and follow behaviors that benefit and protect national parks. Parks need to reinforce messages of moral responsibility and make it easy for them to dispose of waste properly."
-end-


S.J. & Jessie E. Quinney College of Natural Resources, Utah State University

Related Recycling Articles from Brightsurf:

Paper recycling must be powered by renewables to save climate
The study, published in Nature Sustainability, found that greenhouse gas emissions would increase by 2050 if we recycled more paper, as current methods rely on fossil fuels and electricity from the grid.

Lighting the path to recycling carbon dioxide
Combining solar-harvesting materials with carbon-dioxide-consuming microbes could be an efficient way to generate clean fuels.

Plastics, waste and recycling: It's not just a packaging problem
Discussions of the growing plastic waste problem often focus on reducing the volume of single-use plastic packaging items such as bags, bottles, tubs and films.

NREL research points to strategies for recycling of solar panels
Researchers at the National Renewable Energy Laboratory (NREL) have conducted the first global assessment into the most promising approaches to end-of-life management for solar photovoltaic (PV) modules.

Recycling plastics together, simple and fast
Scientists successfully blended different types of plastics to be recycled together, providing a solution to the environmental problem of plastic waste and adding economic value to plastic materials.

Chemical recycling makes useful product from waste bioplastic
A faster, more efficient way of recycling plant-based 'bioplastics' has been developed by a team of scientists at the universities of Birmingham and Bath.

New recycling method could make polyurethane sustainable
Polyurethanes (PUs) are used in many products, such as mattresses, insulation, footwear and construction materials.

Almond orchard recycling a climate-smart strategy
Recycling orchard trees onsite can sequester carbon, save water and increase crop yields, making it a climate-smart practice for California's irrigated almond orchards, finds a study from the University of California, Davis.

'Deceptively simple' process could boost plastics recycling
Plastics are a victim of their own success, so inexpensive, easy to use and versatile that the world is awash in plastic waste.

New membranes for cellular recycling
Cells produce the shell of the autophagosomes on the spot.

Read More: Recycling News and Recycling Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.