Chris Hope's one-man struggle to get a carbon tax put in place in the UK is given another airing in the Guardian. There's not much that readers haven't heard before, except that he puts a figure of £6bn per annum on it. It's a pity that there is no mention of the fact that Pigou taxes are supposed to be revenue neutral, but this is the Guardian we are talking about.
It's a funny thing though. Hope is arguing that shareholders in fossil fuels companies should be punished to the tune of £6bn to compensate unidentified individuals for costs that may or may not be incurred in the future (and despite the fact that for many years to come these costs are actually expected to be benefits). It's all rather reminiscent of the concept of a precrime, with something of the flavour of an extortion racket about it too.
Perhaps the answer is for those academics, activists and politicians who advocate these policies to put their pensions into an escrow account, to be released to them (or their heirs) as and when the predictions on which they want to pin other people's financial futures turn out to be correct.