Elements in the ADP Agreement – under negotiation and to be adopted in Paris in December 2015 – are aimed at two different but related global warming limits: holding warming below a 2°C increase above pre-industrial and to reduce global warming levels below 1.5°C by 2100. Many countries and stakeholders have proposed that robust long-term emission reduction goals for 2050 (and beyond) consistent with the two warming limits be included in the agreement. In addition, the time frames for when all greenhouse gases (GHGs) and CO2 emissions need to be zero under these warming limits have also been proposed. This analysis reviews the state-of-the-art of the science and suggests recommended numbers to reflect these goals within the ADP agreement.
Read the full briefing paper and infosheet here.