Q. How much heat does your home keep? Say which, if any, of these heat-keeping things you've got:
Draught proofing = 140 kg CO2 per year = 11.67 kg CO2 per month
Loft or wall insulation = 490 kg CO2 per year = 40.83 kg CO2 per month
Double-glazing = 740 kg CO2 per year = 61.67 kg CO2 per month