The health of oceans in the face of massive pollution has been a topic of this blog on multiple occasions, and we’re always interested in learning more about the efforts to clean up the incredible amounts of waste, especially plastic, in one of the most–if not the most–important global ecosystems. New models by researchers at Imperial College London are hypothesizing that, rather than targeting sites like the great Pacific garbage patch, trash pick-up by floating microplastic collectors should be more effective near the coasts, where the rubbish originates. Sarah DeWeerdt reports for Conservation Magazine:
Cleanup efforts for ocean plastics should be concentrated close to shore, at the source of the problem, rather than in areas of open ocean where plastic tends to accumulate, according to a study recently published in the journal Environmental Research Letters. Ideally, if plastic collectors were placed offshore near coastal population centers, they could remove nearly one-third of plastic in the ocean over the next 10 years.
In the study, oceanographer Erik van Sebille and undergraduate physics student Peter Sherman, both at Imperial College London, used data on ocean currents and waste management practices in different countries to simulate the entry and circulation of plastic in the oceans from 2015 to 2025.