It would be interesting if basic income were tied to some combination of the Gini index and inflation rate. It would serve as a nice automatic offset to deflation, then fade away as the economy took off and wages increased.
Love the idea, but we had one of these for a couple of years, and at $23/t there was at least an order of magnitude less money in it than needed for a GBI. And per capita, we are among the highest carbon emitters on earth.
Pollution is THE textbook case for an externality. By definition it cant be fixed by the free market.