The equilibrium sensitivity of the Earth's temperature to radiation changes

By Reto Knutti, Gabriele C. Hegerl. 2008

535 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/a1c6696448329ab09348423f640a3a283e33e001

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Citations in the corpus

Irreversible climate change due to carbon dioxide emissions (2009, background): “Smaller values (by 30%) for expected warming, precipitation, and thermal sea level rise would be obtained if climate sensitivity is smaller than the best estimate while larger values (by 50%) would be expected for the upper end of the estimated likely range of climate sensitivity (49).”
Cenozoic carbon cycle imbalances and a variable weathering feedback (2016, unknown): “Because silicate weathering fluxes must be sensitive to climate, we approximate this relationship as a function of the wellconstrained logarithmic sensitivity of climate to pCO2 (Knutti and Hegerl, 2008): Fsilw = k [ log2(RCO2) + 1 ] .”
Improved Climate Simulation by MIROC5: Mean States, Variability, and Climate Sensitivity (2010, background): “This implies that a model representing reasonable climate mean states ensures neither realistic internal variability nor reliable climate sensitivity (e.g., Knutti and Hegerl 2008).”
The economics (or lack thereof) of aerosol geoengineering (2009, background): “Current climate sensitivity estimates are deeply uncertain (Knutti and Hegerl 2008; Frame et al. 2005).”
A delayed oscillator model for the quasi-periodic multidecadal variability of the NAO (2015, unknown): “According to previous studies, the effective heat capacity actually represents the thermal inertia of the climate system, which is broadly defined to include oceanic processes of long time scales (e.g. ocean heat uptake and transport) (Knutti et al. 2008).”
An adaptability limit to climate change due to heat stress (2010, background): “5 °C of warming at equilibrium, but this is poorly constrained on the high side (2, 3) and according to one new estimate has a 5% chance of exceeding 7.”
An observationally based energy balance for the Earth since 1950 (2009, background): “Values of l appropriate to century time scales can be different than those appropriate to a few years [Knutti et al., 2008] so the values used in this paper should not be interpreted in terms of equilibrium climate sensitivity.”
Challenges in Combining Projections from Multiple Climate Models (2010, background): “An important independent line of evaluation is provided by paleoclimate evidence, for example, from the last glacial or interglacial period.”
What are robust strategies in the face of uncertain climate threshold responses? (2012, background): “4) shows that the current fat high tail of the climate sensitivity (Knutti and Hegerl 2008; Urban and Keller 2009, 2010) is the dominating factor explaining the worst case scenarios in our analysis.”
The Economic Impacts of Climate Change (2018, background): “Feedbacks that accelerate climate change are likely to be stronger than feedbacks that dampen warming (Roe and Baker 2007; Knutti and Hegerl 2008; Lewis 2013).”
The Emissions Gap Report 2012 (2012, background): “A probabilistic approach is important because of the great uncertainties of climate sensitivity (roughly speaking, the response of global temperature to additional greenhouse gas emissions) (Knutti and Hegerl, 2008) and transient climate response20.”
Earth system sensitivity inferred from Pliocene modelling and data (2010, background): “Specifically, changes in dust and other aerosols, vegetation, ice sheets and ocean circulation will all modify the eventual equilibrium surface temperature response to a given CO 2 forcin”
Total aerosol effect: radiative forcing or radiative flux perturbation? (2009, background): “This also makes sense from an energy balance perspective (Murphy et al., 2009) and is more suitable in the conceptual framework of radiative forcing and climate sensitivity (Gregory et al., 2004; Knutti and Hegerl, 2008; Quaas et al., 2009a).”
Time-Varying Climate Sensitivity from Regional Feedbacks (2012, methodology): “This definition has facilitated direct comparison of different estimates of climate change, be they instrumental, proxy, or model derived (e.g., Hegerl et al. 2007; Allen et al. 2007; Edwards et al. 2007; Knutti and Hegerl 2008, and references therein).”
Deep-ocean heat uptake and equilibrium climate response (2013, background): “The large upper-ocean heat uptake changes the climate transient response on decadal timescales, and the small deep-ocean heat uptake (DOHU) may influence the ECR on timescales from centuries to millennia due to its impact on some slow feedbacks of the climate system (Knutti and Hegerl 2008).”