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What does 'Tonnes of CO2 per year' mean???
In my profile it asks me whta my 'Tonnes of CO2 per year' is but i can't answer as i don't know what it means. Can any one tell me please???
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This is your 'carbon footprint'. We all have them and the more tonnes per year of CO2 our lifestyles produce, the more carbon-based energy we are using and the more we need to consider how to live in a sustainable way. To calculate your carbon footprint, you can visit a website like earthlab which has a very helpful one. There are many other carbon footprint calculators around.