What’s your carbon volume?

A few car adverts are currently boasting a low carbon emission of 120g of CO2 per kilometre of driving. That still sounds like a lot.

At 15°C, CO2 weighs 1.977kg per cubic metre, so 120g equates to 60,700 cubic centimetres, or a 39 centimetre cube, full of carbon dioxide. So a trip to Yorkshire and back for me would equate to 41 cubic metres of CO2 or a 3.43 metre cube. Quite a chunk. If it’s cold, then the carbon footprint is reduced, I guess.


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