Reflecting further on a PNAS paper by a group of authors that includes Professors Stephen Pacala and Robert Socolow leads me to suspect that elements of its proposed policy framework are unworkable and may have unintended unethical consequences :-
https://www.pnas.org/content/early/2009/07/02/0905232106.full.pdf+html
It also leads me to conclude that research partly financed by Oil and Gas companies may be part of the Climate Change policy problem – how to reach global agreement on a way forward.
“Sharing global CO2 emission reductions among one billion high emitters”, by Shoibal Chakravarty, Ananth Chikkatur, Heleen de Coninck, Stephen Pacala, Robert Socolow and Massimo Tavoni, published in Proceedings of the National Academy of Sciences (PNAS), Volume 106, Number 29, 21st July 2009.