Contributions to observed surface temperature change over the period 1951–2010
<a rel="nofollow" class="external text" href="https://www.ipcc.ch/site/assets/uploads/2018/02/SYR_AR5_FINAL_full.pdf">IPCC, 2014: Climate Change 2014: Synthesis Report. Contribution of Working Groups I, II and III to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Core Writing Team, R.K. Pachauri and L.A. Meyer (eds.)</a>. IPCC, Geneva, Switzerland, 151 p. 48]
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