By MARVIN RECINOS / AFP A blanket of multi-colored plastic waste flowing in from tributaries covers Lake Suchitlan in El Salvador. A blanket of multi-colored plastic waste flowing in from tributaries covers Lake Suchitlan in El Salvador. It is a sorry scene that has also become an all too common sight on the Caribbean beaches of Honduras, where thousands of tons of rubbish arrive from neighboring Guatemala. Fizzy drink bottles, medication packets, tattered flipflops: all sorts of plastic rubbish can be found floating on 13,500-hectare (52 square mile) Lake Suchitlan, which serves as a reservoi…