Sources and further reading

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Carbon emissions data from Le Quéré, C. et al. Earth Syst. Sci. Data 7, 47-85 (2015).

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Global temperature trend from Fig. 1 in the statement of James Hansen, presented to the US Senate Committee on Energy and Natural Resources, 23 June 1988.

Landsat images from: http://landsat.gsfc.nasa.gov/?p=2824

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Projected sea-level rise from Fig. 12 in the Policymakers Summary of: Houghton, J. T., Jenkins, G. J. & Ephraums, J. J. (eds) Climate Change: The IPCC Scientific Assessment (Cambridge University Press, 1990).

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Carbon emissions data from: Le Quéré, C. et al. Earth Syst. Sci. Data 7, 47-85 (2015).

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Modelled and observed temperatures are from Fig. 1c, and the map of projected temperature change in 2100 is from Fig. 20a in the technical summary of Houghton, J. T. et al. (eds) Climate Change 2001: The Scientific Basis (Cambridge Univ. Press, 2001).

European heat wave death rates from: Robine, J.-M. et al. C. R. Biol. 331, 171–178 (2008).

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Trillion-tonne carbon budget from: Allen, M. R. et al. Nature 458, 1163–1166 (2009).

Carbon dioxide concentration data from http://www.esrl.noaa.gov/gmd/ccgg/trends

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Arctic Sea Ice map from the US National Snow and Ice Data Center.

Trends in atmospheric CO₂ from http://www.esrl.noaa.gov/gmd/ccgg/trends/

Observed change in surface temperature from Fig. SPM 1b in Stocker, T. F. et al. (eds) Climate Change 2013: The Physical Science Basis (Cambridge University Press, 2013).

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Annual global temperature (land and ocean) from NASA Goddard Institute for Space Studies.