Geological Society of London Scientific Statement: what the geological record tells us about our present and future climate by Lear, CH, Anand, P, Blenkinsop, T, Foster, GL, Gagen, M, Hoogakker, B, Larter, RD, Lunt, DJ, McCave, IN, McClymont, E, Pancost, RD, Rickaby, REM, Schultz, DM, Summerhayes, C, Williams, CJR, Zalasiewicz, J