I'm not sure environmentalists doubt the economics, or your blanket dismissal. More the huge delay in waiting for the economics to maybe win out. Hence calling

I'm not sure environmentalists doubt the economics, or your blanket dismissal. More the huge delay in waiting for the economics to maybe win out. Hence calling for subsidies to the alternative, not as we currently do, subsidise the (formerly) profitable incumbents. I suppose I reluctantly wear the environmentalist label as that's how some see me. It's not how I would see myself. A fix is removing all subsidy from fossil fuels and instead subsidising renewables along with increased insulation and combined community heat and power schemes. Except I don't see that as environmentalism, just common sense, whether considering an individual family and house, or a town or national scale.