Compléter Food scrapsVersion en ligne Fill in the gaps with the right word par Juanma Alijo 1 Methane food landfill CO2 food greenhouse waste organic amount thrown do matter gas 20 What powerful gas is produced when matter like scraps and garden cuttings are into landfill ? , a greenhouse with over times the global warming capacity of carbon dioxide ( ) , is produced when organic breaks down in . What can you ? Reduce the of you .