Throw one trillion* one-meter styrofoam squares coated top and bottom with aluminum (both sides in case they flip over) into random spots in the ocean. They deg

Throw one trillion* one-meter styrofoam squares coated top and bottom with aluminum (both sides in case they flip over) into random spots in the ocean. They degrade over the next few years, so they clear themselves out. * Plus or minus a few orders of magnitude... haven't actually calculated this.