File under : “That’s never going to ever happen if the United States of America have anything at all to do with it”.
The illustrious German Advisory Council on Global Change, the WBGU, or “Wissenschaftliche Beirat der Bundesregierung Globale Umweltveraenderungen” in longhand, have done some excellent work on proposals for a global Carbon framework.
As part of their 2009 paper entitled in English “Solving the climate dilemma: The budget approach” they came to some useful conclusions, but also some startlingly unworkable recommendations :-
https://www.wbgu.de/wbgu_sn2009_en.pdf
https://www.wbgu.de/wbgu_sn2009_en.html