108%! I am not sure why, probably using gas to heat the house, but there is no allowance for the rooms where the radiators are turned off. I drive a petrol car but my mileage is tiny.
There is also no set-off for the trees and shrubs I have planted and tend dutifully in my garden. Surely any sensible indicator should give you some credit for doing something positive rather than just rapping you over the knuckles for everything else. If you turn your garden into a car park, as many do, surely that is bad for the environment if good for road congestion.
I read that making cement is very bad for the environment but how do we provide houses and update properties without cement? In the end, as we know, this is about us feeling better or worse. If we all lived as monks and nuns in the UK, we would have minimal impact on world CO2 emissions.