Your Carbon Footprint
For an individual, the personal carbon footprint, including their share of emissions from the home (for example, if 4 people live in your home, then divide the total output by 4, and accept a quarter responsibility for the total emissions), should be in the region of between 1,000 to 6,000 kg. This is tonnage of annual carbon emissions an individual is responsible for. The ideal figure for an individual, living within a sustainable carbon budget is up to 1,000 kg.

This is very interesting and should lead us into sustainable design