Talk:Greenhouse gas emission reduction targets
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Table
Scenario | Co2 Concentration at Stabilization | Co2 equivalent Concentration at Stabilization including GHGs and aerosols | Peaking year for Co2 emissions | Change in global emissions in 2050 (percent of 2000 emissions) | Global average temperature increase above pre-industrial at equilibrium using 'best estimate' climate sensitivity | Global average sea level rise above pre-industrial equilibrium from thermal expansion only |
parts per million (a) | parts per million (b) | year | percent | degrees Centigrade | metres (c) | |
I | 350-450 | 445-535 | 2000 - 2015 | -85 to -50 | 2.0 to 2.4 | 0.4 to 1.4 |
II | 400-440 | 490-535 | 2000 - 2020 | -60 to -30 | 2.4 to 2.8 | 0.5 to 1.7 |
III | 440-485 | 535-590 | 2010-2030 | -30 to +5 | 2.8 to 3.2 | 0.5 to- 1.9 |
IV | 485 - 570 | 590-710 | 2020 - 2060 | +10 to +60 | 3.2 to 4.0 | 0.6 to 2.4 |
V | 570-660 | 710-855 | 2050-2080 | +25 to +85 | 4.0 to 4.9 | 0.8 to 2.9 |
VI | 660 - 790 | 855-1130 | 2060-2090 | +90 to +140 | 4.9 to 6.1 | 1.0 to 3.7 |