“Plough agriculture is our greatest single CO2 producer. Second would be forestry. Industry lags well behind but pads along trying hard. Now what I said about CO2, the same order of destruction is true of soils: agriculture is the greatest destructive influence in the total environment, forestry is next and industry is a bad third so instead of perhaps lying down in front of the coal trains or something we should be lying down in front of the farmers’ tractors.” Bill Mollison: “Permaculture Design Course 1983” 1b 00:18:50 - 00:19:35