I have to do environmental poster for a class and wanted to know how thick the sheet of plastic is.
I'm not aware of any sheet of plastic at the bottom of the ocean.
It's different in each place depending on how close to the source of rubbish and whether the ocean tides have made it pile up in certain spots. There isn't an even spread of plastic rubbish right across the ocean.
UNANSWERABLE There is no way any one organization, country or program to calculate such. WHY ? Besides the natural pollution that occurs due to various leaks in the earths crust, dying animal debris, scuttled ships, garbage thrown overboard from Naval ships, Pleasure crafts, etc..........from oil spills, soil run off, foreign items swept out to sea due to hurricanes, etc, etc, etc.............. there just is no way to calculate or even guess how much garbage there may be at the bottom of the sea.
