How the oceans can clean themselves
This Tedx talk by 18-year-old Boyan Slat proposes using ocean currents and anchored filtration platforms linked by wings of fine-mesh gauze to filter out even the smallest plastic particles from the ocean in the five mid-oceanic gyres on earth.
Rick Wilson -
Please see the following critique of this:
http://inhabitat.com/the-fallacy-of-cleaning-the-gyres-of-plastic-with-a-floating-ocean-cleanup-array/