If you are concerned about green things and believe all the disaster hype then you can voluntarily sign up to a level N voluntary “green” tax percentage based on your level of concern.
And the level of tax you have opted to pay is public, so then it will be funny watching all the “green” bogeypeople browbeating each other for not having signed up to pay a large enough voluntary green levy, whereas sceptics can say f@ck you, you believe it!, you pay more f@cking tax! And they can!
Personally I think all reasonable measures to help reduce pollution have already been taken by Britain over last 30 or so years, and in fact taken too far! Latest coal powered stations were quite clean as well, and petrol cars now quite clean too. No more flaring of oil rig spare gas, etc. etc
Insulation of the housing stock probably still remains to be improved. But that makes the energy companies no money eh!
That said I think there are too many cars, vans and lorries on the road, should be incentives for small motorbikes and e-bikes, and improvement in public transport provision.