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42 Managing Global Warming
2058. Cumulative emissions (Gt(C))
by 1200 1000 800 600 400 200 0 2100
5Gt(C)/yr 2090 2080 GGR (Gt(C) year –1 )
at 2070 2060
stabilize Annual and cumulative emissions projections 2014–2100 2050 Net emissions (Gt(C) year –1 ) Cumulative emissions (Gt(C))
2025 2040 2030
in 2020
peak 15 10 5 0 –5 Annual emissions/GGR (Gt(C) year ) –10 2010
2066—emissions Peak GGR 5.0 Gt(C) year –1 in 2066 –1 Emissions (Gt(C) year –1 ) Target cum emissions
in
peaking 2100 2090
and 2080 TFC/year (EJ)
2040 2070
starting Annual energy projections 2014–2100 2060 2050 ZEE/year (EJ)
GGR 2040
5Gt(C)/yr 2030 2020 FF/year (EJ)
+ 0 2010
ZEE 1800 1600 1400 1200 1000 800 600 400 Total final consumption (EJ) 200
—cont’d 2°C: ZEE index 13
2.2 19: +2°C
Box Scenario