Back before Copenhagen, the World Wildlife Fund released a study in which it compared Contraction and Convergence, Common but Differentiated Convergence, and Greenhouse Development Rights, and then almost endorsed GDRs. More recently, WWF India has taken that study off the shelf and presented its results in a number of prominent venues. The presentation, here, is notable for its clarity, and its open tone. It still almost endorses GDRs, but it really is “An offer for discussion.”
Also notable in this presentation is the completeness with which the remaining budget is presented:
To be consistent with staying well below 2 degree C
1. Emission budget of 1660 GtCO2eq between 1990 and 2050 excluding LUCF, or about 1000 GtCO2eq between 2010 and 2050 (taking account of emissions 1990 – 2010)
2 Assuming that emissions from LUCF remains constant at 2. Assuming that emissions from LUCF remains constant at 4GtCo2 until 2010 and decline to zero between 2010 and 2020; becoming a stable net sink of emissions afterwards
3. Allowable global emission of ~ 22 GtCO2eq/year globally on average 2010 – 2050. Compared to >50 GtCO2eq/y today.
And there’s also this note, which is almost in a class by itself:
‘Negative’ allowances for Annex I reflect on substantive funding requirements for poorer nations to get below their allowances
• Negative allowances for Annex 1 countries, also provide opportunities for emerging economies to grow, but by integrating low carbon development path. An emissions budget of about 900/1000 Gt CO2e (2009-2050) requires to leave about 80% of all known conventional and unconventional recoverable fossil fuel reserves under ground.
