Gordian Knot News • 124 implied HN points • 04 Feb 26
- Fat-tailed uncertainty about climate damages does not make cost-benefit analysis pointless; if your probability distribution for the social cost of carbon has a finite mean, you can minimize expected total cost by using that mean as the weight for CO2.
- Electricity systems lie on a cost-versus-CO2 trade-off curve, and the slope at the chosen point is the society's effective social cost of carbon, so publishing the curve and choosing a median public preference gives a consistent grid choice and SCC.
- Fat-tailed SCC distributions can have means far above their most likely value, which implies much higher justified carbon prices; those revenues can be used to replace or rebate other taxes so the policy is progressive.