This has been another interesting thread and one that has encouraged me to research and reconsider my own environmental impact even more so than I had previously.
The UK government have set out a target carbon footprint per person of 10 tonnes by 2020. The current uk average is around 13.5 tonnes which I have since found out is roughly where I am. Interestingly the world average is circa 5 tonnes.
My biggest crime is quite obviously my current diesel guzzling choice of transport. I will be seriously considering swapping this in next year for a more environmentally friendly option.
Calculating your carbon/environmental footprint is a good place to start and there are many calculators online as well as those offered by your energy supplier. I quite like this one from the WWF (animals not wrestlers!) https://footprint.wwf.org.uk/#/