Poor people can still vote. And they will vote against anything that reduces their dividend, even if means voting against things that lower emissions. As to yo

Poor people can still vote. And they will vote against anything that reduces their dividend, even if means voting against things that lower emissions. As to your second point - moving the goalposts every time progress is made eliminates any incentive to improve. If you're committing to keeping the dividend the same over time, that means you need to keep the tax take the same. And if you're gonna take the same amount of money off me regardless, why should I pay attention to my emissions? In the limit case, of zero carbon, the carbon tax rate is infinite and you're taking a bunch of cash off people for nothing. Somewhere along the way, something has got to give.