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Perhaps 'we' should be investigating using decaying organic matter in a sort of 'compost heap' to produce heat (and thereby energy) - as well as reducing the quantity of material for landfill (leaving plant compost for agricultural use).
I know that 'burning' garbage has been tried (and rejected as producing harmful dioxins), and maybe what I am suggesting might require too much space (and energy to 'turn' the heap) - and maybe someone somewhere is already doing it?
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