How can we speed up plastic photodegradation?

Author's Note

In 1960, plastics comprised only about 1 percent of solid waste in the United States. Now, that number is more like 12 percent. Most of these plastics go straight to the dump after we use them, a fact that highlights extreme wastefulness -- especially when you consider that plastics are easy for manufacturers to melt and reuse for new products.

Degradable plastics are a good tactic in our overall strategy for waste management. That's especially true for the roughly 4 billion plastic bags that become litter every year around the globe. But when it comes to long-term sustainability, we're better off recycling and reusing materials instead of constantly disposing of them.

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  • CBC News. "San Francisco Bans Traditional Plastic Grocery Bags." March 28, 2007.
  • Environmental Protection Agency. "Plastics."
  • European Commission. "Marine Pollution Awareness."
  • European Plastic Films. "Biodegradable Plastics – Developments and Environmental Impacts." October 2002.
  • Dow Corporation. "Product Safety."
  • Fimrite, Peter. "Environmentalists Hunt Wildlife-Killing Nurdles." Oct. 29, 2011.
  • Garthe, James W. and Paula D. Kowai. "The Chemical Composition of Degradable Plastics."
  • GXT Green Product Page. "ECOGrade Photo-degradable Shopping Bags."
  • Lancelot, Charles. Executive Director of Plastics Environmental Council. Personal interview. March 31, 2012.
  • Oxo-biodegradable Plastics Association. "Transition Metal Salts."
  • Smithers, Rebecca. "For Christmas I Don't Want a Plastic Bag." The Guardian. June 11, 2007.