{WGIII SPM footnote 30}
144 These numbers for CO2 are 48 [36 to 69]% in 2030, 65 [50 to 96] % in 2035, 80 [61 to109] % in 2040 and 99 [79 to 119]% in 2050.
145 These numbers for CO2 are 22 [1 to 44]% in 2030, 37 [21 to 59] % in 2035, 51 [36 to 70] % in 2040 and 73 [55 to 90]% in 2050.
146 In this context, ‘unabated fossil fuels’ refers to fossil fuels produced and used without interventions that substantially reduce the amount of GHG emitted throughout the life 
cycle; for example, capturing 90% or more CO2 from power plants, or 50 to 80% of fugitive methane emissions from energy supply. {WGIII SPM footnote 54}
In modelled pathways that limit warming to 1.5°C (>50%) with 
no or limited overshoot and in those that limit warming to 
2°C (>67%), assuming immediate actions, global GHG emissions 
are projected to peak in the early 2020s followed by rapid and 
deep GHG emissions reductions (high conﬁdence) 142. In pathways 
that limit warming to 1.5°C (>50%) with no or limited overshoot, net 
global GHG emissions are projected to fall by 43 [34 to 60]%143 below 
2019 levels by 2030, 60 [49 to 77]% by 2035, 69 [58 to 90]% by 2040 
and 84 [73 to 98]% by 2050 (high conﬁdence) (Section 2.3.1, Table 2.2, 
Figure 2.5, Table 3.1)144.