1. Hansen J, Soto M, Khareshka P, von Schuckmann K (2011) ‘Earth’s energy imbalance and implication. NASA Goddard Institute for Space Studies (GISS). Atoms Chem Phys 11:13421–13499
2. Hansen J, Johnson D, Lacis A, Lebedeff S, Lee P, Rind D, Russell G (1981) Climate impact of increasing carbon dioxide. Science 213(4511):957–966
3. Hansen J, Lebedeff S (1987) Global trends of measured surface air temperature. J Astrophys Res 92(D11):13345–13372
4. Hansen J, Ruedy R, Sato M, Lo K (2011) 2010 global surface temperature change. Rev Geophys 48:RG4004
5. Brohan P, Kennedy JJ, Harris I, Tett SFB, Jones PD (2006) Uncertainty estimates in regional and global observed temperatures: a new data set from 1850. J Geogr Res 111(D12):D12106