Foamed plastic is a real problem at beach cleanups etc. We got a letter to the editor printed in the MD Coast Dispatch about a statewide bill to ban styrofoam in takeout food containers.
See the letter here, second one down. https://www.mdcoastdispatch.com/2017/03/23/voices-from-the-readers-march-24-2017/
And to help us ban styrofoam please visit http://banthefoam.org/