2 Matching Annotations
- Aug 2020
In addition to the issue of path dependency—recall that RCP8.5 2005 to 2020 total cumulative CO2 emissions are within 1% of historical emissions—the issue of missing carbon cycle climate feedbacks is critical.
Carbon feedbacks are the reason for assuming that RCP8.5 is realistic in spite of probably lower cumulative emissions until 2050.
Looking at midcentury and sooner, RCP8.5 is clearly the most useful choice.
This is the central statement. It is made with regard to policy choices.