IPCC Fourth Assessment Report: Climate Change 2007
Climate Change 2007: Working Group III: Mitigation of Climate Change
Figure TS.26

Figure TS.26A (left): Global economic mitigation potential in 2030 estimated from bottom-up studies. Data from Table TS.15. [Figure 11.3].

Figure TS.26B (right): Global economic mitigation potential in 2030 estimated from top-down studies. Data from Table TS.16. [Figure 11.3].