Table 4.

Carbon budgets, cumulative emissions and emissions surplus or deficit, Mt CO₂e

		CB2	CB3	CB4	CB5
POLICY IMPLEMENTATION	EMISSIONS DESCRIPTION	(2013–17)	(2018–22)	(2023–27)	(2028–32)
CARBON BUDGETS	Cumulative emissions	2,782	2,544	1,950	1,725
EXISTING POLICIES	Cumulative emissions	2,657	2,424	2,081	1,958
PLANNED POLICIES	Cumulative emissions	2,655	2,393	2,042	1,921
	Budget surplus/deficit	127	151	−92	−196
MATERIAL PRODUCTIVITY ‐ LOW	Cumulative emissions	2,654	2,389	2,035	1,911
	Budget surplus/deficit	128	154	−85	−186
MATERIAL PRODUCTIVITY ‐ MED	Cumulative emissions	2,650	2,375	2,013	1,880
	Budget surplus/deficit	130	163	−63	−155
MATERIAL PRODUCTIVITY ‐ HIGH	Cumulative emissions	2,644	2,353	1,975	1,829
	Budget surplus/deficit	134	175	−25	−104