c105.
IPCC Fourth Assessment Report, synthesis report, table 5.1, p 67, available at http://tinyurl.com/72p9wwd . See also Myles R. Allen, David J. Frame, Chris Huntingford, et al., “Warming Caused by For further clarification of the terminology of climate science—radiative forcing, CO2 equivalent, global warming potential, parts per million, etc.—see Shaun Chamberlin (2009), The Transition Timeline, chapter 17: “Climate Change Explained”. Also available as “The Climate Science Translation Guide” at www.darkoptimism.org/2008/09/03/the-climate-science-translation-guide/ . Cumulative Carbon Emissions Towards the Trillionth Tonne”, Nature, 458, 30 April 2009, pp 1163–1166, in which the authors conclude that: “Total anthropogenic emissions of one trillion tonnes of carbon (3.67 trillion tonnes of CO2), about half of which has already been emitted since industrialisation began, results in a most likely peak carbon-dioxide-induced warming of 2°C above pre-industrial temperatures, with a 5–95% confidence interval of 1.3–3.9°C”. But, as argued in Energy Prospects, anthropogenic emissions in the future could more than double.