Rohling, E.Huybers, Peter2017-04-072012Rohling, E., Peter Huybers, et al. 2012. Making sense of palaeoclimate sensitivity. Nature 491: 683–691.0028-0836http://nrs.harvard.edu/urn-3:HUL.InstRepos:32096455Many palaeoclimate studies have quantified pre-anthropogenic climate change to calculate climate sensitivity (equilibrium temperature change in response to radiative forcing change), but a lack of consistent methodologies produces a wide range of estimates and hinders comparability of results. Here we present a stricter approach, to improve intercomparison of palaeoclimate sensitivity estimates in a manner compatible with equilibrium projections for future climate change. Over the past 65 million years, this reveals a climate sensitivity (in K W−1 m2) of 0.3–1.9 or 0.6–1.3 at 95% or 68% probability, respectively. The latter implies a warming of 2.2–4.8 K per doubling of atmospheric CO2, which agrees with IPCC estimates.en-USClimate ScienceEarth SciencesJournal Article2016-01-29Rohling et al10.1038/nature11574