Why are we encouraged to keep food waste out of landfill??

No.12988056 ViewReplyOriginalReport
>stupid question that's always bugged me a little
If the problem with landfill is that it takes a long time for the contents to biodegrade and return to the earth wouldn't it be better if a larger proportion of it was this type of compostable waste that will return to earth sooner? Thus allowing the whole landfill to 'heal' sooner?