Been thinking about this quite a bit recently. I could change my £3000 boiler for a £10,000 heat pump?
I could change my old banger of a car £2000 for a new electric one £35,000? Or, I could just not replace it when I retire in two years.
I could get solar panels fitted but they're hugely expensive and I'm poor, by Western European standards.
I can't really see what I could do that would make much of a difference unless I spend vast amounts of money I haven't got.
I'd like to go gas free, the government (of both persuasions) subsidised gas boilers for years, a scheme that helped people change to heat pumps would be a start. Improving public transport in places other than big cities would also make a big difference.