You’ve probably seen the images of dolphins caught in abandoned monofilament fishing nets, or of vast areas of plastic trash floating in remote waters of the Pacific, or of sea turtles consuming plastic bags that look remarkably like one of their favorite foods: jellyfish. Or perhaps, after a rainstorm, you’ve walked on a beach that resembled a landfill.
Some 20 million tons of plastic pollution enters the oceans each year, and it’s devastating the marine environment.
Plastic litter is also costly. On the West Coast alone, according to a recent EPA study, the cost of cleaning up marine litter comes to more than $13 per person per year. And because plastic typically does not degrade in the ocean, today’s pollution will be a problem for many generations to come.
Locally, there have been some success stories.
Thanks to state and federal environmental requirements, the Los Angeles region has installed screens on more than 50,000 storm water basins, as well as inserts that keep all but the smallest plastic pollution out of local rivers, beaches and bays. Additionally, bans on single-use plastic bags in a number of local jurisdictions have reduced plastic bag use by tens of millions of bags annually.
These measures have meant less plastic ending up in the ocean locally.
But we need far more comprehensive policies, and the story nationally and internationally is still gloomy. Last year’s landmark Rio 20 United Nations Conference on Sustainable Development recognized marine litter as a major environmental issue that the world must address, and it called for action by 2025 to “achieve significant reductions in marine debris to prevent harm to coastal and marine environments.”
However, a recent UCLA study analyzed dozens of treaties, programs and policies in place around the world and found all of them to be severely lacking.
Overall, the well-intentioned international agreements impose vague or voluntary standards, require little to no monitoring, are severely underfunded and are difficult to enforce.
To achieve the dramatic reductions necessary to stem the plastic marine litter crisis, we need a comprehensive solution akin to the Montreal Protocol, an international treaty that has dramatically reduced the global use of ozone-depleting chlorofluorocarbons.
An effective treaty would include strict monitoring requirements, third-party compliance assessment, funding mechanisms and easily enforceable requirements with substantial penalties.
Potential actions could include the creation of an “ocean-friendly” product certification program; regional and national bans on the most common and damaging types of plastic litter; the expansion of programs that provide economic incentives for manufacturers to manage plastic waste sustainably; the creation and implementation of certification and tracking programs for fishing and aquaculture operations; and the establishment of funding sources for marine litter remediation through product redemption fees and shipping container fees at ports.
No individual action will solve the plastic marine litter crisis, but swift implementation of these policies could have a huge positive effect in reducing a critical environmental problem.
Mark Gold is associate director of the UCLA Institute of the Environment and Sustainability. Cara Horowitz is executive director of the Emmett Center on Climate Change and the Environment at UCLA Law School. They wrote this for the Los Angeles Times.