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GAO Asks Whether Chemical Recycling Can Reduce Plastic Pollution
The U.S. Government Accountability Office (GAO) posted a WatchBlog item entitled “Can Chemical Recycling Reduce Plastic Pollution?” on October 5, 2021. The item looks at GAO’s September 2021 Science & Tech Spotlight: Advanced Plastic Recycling. According to GAO, chemical recycling could reduce the amount of plastic that ends up in landfills, potentially reducing the release of chemicals into the environment. Chemical recycling can produce high-quality raw materials, decreasing the demand for fossil fuels and other natural resources. GAO states that the obstacles to using chemical recycling include process and technology challenges, high startup and operating costs, and limited incentives for recycling innovation and investment. GAO notes that new plastics produced from fossil fuels are typically cheaper to produce than recycled plastics, in part due to transportation costs and limited recycling infrastructure, making recycled plastics less marketable. Key questions for policymakers include:
What steps could the federal government, states, and other stakeholders take to further incentivize chemical recycling rather than disposal? What are the potential benefits and challenges of these approaches?
What steps could policymakers take to support a transition toward a circular economy -- one in which products are not disposed of but are recycled for reuse including innovation -- and investment in manufacturing and recycling capacity?
What might policymakers do to promote advanced recycling technologies while also reducing the hazards associated with existing plastic production and recycling methods?
One issue that GAO fails to consider is the regulatory status of depolymerized plastic. Furthermore, making a polymer by depolymerizing plastic is, according to the Toxic Substances Control Act (TSCA) nomenclature rules, different than the virgin polymer. These nomenclature complications will likely be a barrier to the commercialization of the closed-loop chemical recycling of plastics.