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Scenarios of Future CO2 Global Emissions and Concentrations
The graphs show recent and projected global emissions of carbon dioxide in gigatons of carbon, on the left, and atmospheric concentrations on the right under five emissions scenarios. The top three in the key are IPCC scenarios that assume no explicit climate policies (these are used in model projections that appear throughout this report). The bottom line is a “stabilization scenario,” designed to stabilize atmospheric carbon dioxide concentration at 450 parts per million. The inset expanded below these charts shows emissions for 1990-2010 under the three IPCC scenarios along with actual emissions to 2007 (in black). Image References: Nakićenović and Swart; Clarke et al.; Marland et al.; Tans1
References
- 1. [92] various. footnote 92., 2009.
Summary
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