How is it going to be cheap for the rich? They make their money off the externalities of climate change. All that "unearned" income is going to disappear meanwhile "earned" income through work won't.

You have all these insane people following the protestant work ethic, who want to work all day even if there is not enough for them to do. Yet simultaneously, they won't work on solving climate change because for some strange reason the "economics" (perceived or not) don't "work out". The interest rate that must be paid to investors i.e. 0% by far exceeds the interest rate that the market can actually deliver. Kind of amusing. It's like people purposefully put on a brain cage and then act completely helpless as if they didn't choose this to happen.

The fact that we even have to argue about this, while short term interest rates should be negative feels like a bad joke.

You must first work then play but if you keep working in your play time, then work itself becomes play, it won't remain work and no amount of distortion by decree will change that.