recycling and how we can do better. watch this. >> three years ago i went to the port of long beach, los angeles, america's biggest, to see what happens to the plastic you recycle. >> 60% of these containers are going back empty and the stuff that's in the ones going back full would really surprise you. america's main export to china by volume was trash, recycled metal, card board and plastic. >> we're sending china our pepsi bottles, our aquafina bottles, vitamin water bottles and they're sending them back to us as insulation in our coats. >> but in january this year, china stopped accepting our plastic. >> it all gets squished together like that. after china banned some types of plastic earlier this year, now more than ever, that stuff could end up in a land fill.