Microplastics have already reached every corner of the ocean, Romera says. It is so much that it can’t be cleaned up anymore.

“There is some initiative to remove large plastics from the surface, but only 1% of the plastic that reaches the sea has been found on the surface. The other 99% is presumed to be in the water column or on the seabed,” she says.

“It is very difficult to clean up, and the technology that has been proposed will also remove the micro-organisms that are critical to the marine ecosystem.”