Ha, I also just threw out some Roundup I've had for years, sure I'd never be using it again.
The reason for coal is that trees fell down and died before bacteria that eat lignin and cellulose evolved. So it just piled up, went black and waited for us to invent firelighters. These days there's plenty of stuff that eats lignin and cellulose, so I guess there isn't much new coal being made.
So there is some hope, and some signs, that plastic eating bacteria are developing. Could be a new problem down the line, but it would be nice if they started eating the stuff soon.
