Comment Re:Should X be mandatory? (Score 5, Informative) 861
Well, the problem is that landfills are actually *made* to handle toxic substances, so filling them up with things that don't belong there wastes *lots* of money and time. They usually put landfills in empty rock quarries, so that the waste doesn't leach into the soil and water system. In addition, they are usually treated in such a way as to encourage it *not* to break down, and therefore it is less of a hazard. If you spend all of that landfill area on stuff that *could* be composted away, you are just wasting valuable space.