Abstract:
Plastics have become a staple of the urbanized human environment. Production and
distribution of plastic resins became widespread during World War II. Nations at that
time were not aware of the consequences of the use of plastics would impose on the
environment. In the 1960s it was determined that plastics and had become a threat to
wildlife and that their design for durability had also caused them to become a persistent
pollution problem. By the 1980s, it was recognized that plastics had also become a threat
to human health. In the past two decades it has been determined that plastics contribute to
many more environmental threats and have also been recognized as a contributor to
greenhouse gas emissions, attributed to global climate change.
While efforts have continued in the United States to recover plastic materials for
recycling, a large percentage of waste that is disposed of is composed of plastic material.
Federal legislation in regards to plastics is soft law that is aimed at encouraging use of the
three “Rs”: Reduce, Reuse, and Recycle. There are no specific regulations regarding their
reduction, reuse, or recycling. The Environmental Protection Agency (EPA), however,
has introduced through their Resource Conservation Challenge (RCC), a goal to increase
the national recycling rate to 35 percent. Local efforts at the municipal, county, or state
level have been attempted through various types of legislation to address increasing the
recovery of plastics only, as well.
This study examined the threats that plastics pose to the natural and human environment,
the effectiveness of policy to address those issues, and the contribution of plastic
production, use, and disposal in the United States to the emission of greenhouse gases.
This study focused on polyethylene, the plastic that is most widely produced, used, and
disposed of plastic material in the United States. Waste management strategies applied to
polyethylene plastics that are currently in place and their overall contribution to carbon
dioxide (CO2) emissions have been examined, as well. Source reduction as a policy
instrument was compared to the nation reaching the EPA’s 35 percent recycling goal to
determine which would be more effective at addressing the cumulative threats of plastics.
In examining these aspects in regards to polyethylene plastics this study has determined
that a 25 percent source reduction of virgin plastic material as a policy instrument will
more effectively reduce the amount of plastics bound for release in the environment and
that are available to create hazards to human health, and will also reduce greenhouse gas
emissions attributed to the production, use, and disposal of plastics more effectively than
meeting the national recycling goal of 35 percent.