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- New confirmation that climate models overstate atmospheric warming
- New paper suggests historical period estimates of climate sensitivity are not biased low by unusual variability in sea surface temperature patterns
- Emergent constraints on TCR and ECS from historical warming in CMIP5 and CMIP6 models
Search Results for: climate sensitivity
New paper suggests historical period estimates of climate sensitivity are not biased low by unusual variability in sea surface temperature patterns
By Nic Lewis An important new paper by Thorsten Mauritsen, Associate Professor at Stockholm University[i] and myself has just been accepted for publication (Lewis and Mauritsen 2020)[ii]. Its abstract reads:
by Frank Bosse Equilibrium climate sensitivity computed from the latest energy imbalance data.
Gregory et al 2019: Unsound claims about bias in climate feedback and climate sensitivity estimation
By Nic Lewis The recently published open-access paper “How accurately can the climate sensitivity to CO2 be estimated from historical climate change?” by Gregory et al.[i] makes a number of assertions, many uncontentious but others in my view unjustified, misleading … Continue reading
by Judith Curry Are values of equilibrium climate sensitivity > 4.5 C plausible?
by Alberto Zaragoza Comendador How sensitive is the Earth’s climate to greenhouse gases? Speaking about carbon dioxide in particular, how much would air temperatures increase if we doubled atmospheric concentrations of said gas?
By Nic Lewis An observational estimate of transient (multidecadal) warming relative to cumulative CO2 emissions is little over half that per IPCC AR5 projections. AR5 claims that CO2-caused warming would be undiminished for 1000 years after emissions cease, but observations … Continue reading
By Nic Lewis A critique of of a new paper by Andrews et al., Accounting for changing temperature patterns increases historical estimates of climate sensitivity.
By Nic Lewis Plain language summary A new paper by Andrew Dessler et al. claims, based on 100 simulations of the historical period (1850 to date) by the MPI‑ESM1.1 climate model, that estimates of climate sensitivity using the energy-budget method … Continue reading
by Nic Lewis We have now updated the LC15 paper with a new paper that has been published in the Journal of Climate “The impact of recent forcing and ocean heat uptake data on estimates of climate sensitivity“. The paper … Continue reading
by Nic Lewis The two strongest potentially credible constraints, and conclusions.
by Nic Lewis The four constraints that Caldwell assessed as credible.
by Nic Lewis Emergent constraints on climate sensitivity: their nature and assessment of validity.
by Nic Lewis Recently a new model-based paper on climate sensitivity was published by Kate Marvel, Gavin Schmidt and others, titled ‘Internal variability and disequilibrium confound estimates of climate sensitivity from observations’.
by Nic Lewis A new paper in Science Advances by Cristian Proistosescu and Peter Huybers (hereafter PH17) claims that accounting for the decline in feedback strength over time that occurs in most CMIP5 coupled global climate models (GCMs), brings observationally-based … Continue reading
by Frank Bosse Towards eliminating multi-decadal natural oscillations in determination of the Transient Climate Response (TCR) to CO2.
by Nic Lewis In a recently published paper (REA16),[i] Mark Richardson et al. claim that recent observation-based energy budget estimates of the Earth’s transient climate response (TCR) are biased substantially low, with the true value some 24% higher.
by Judith Curry A new paper purports to have resolved the discrepancy between climate response estimates from global climate models versus energy budget models.
by Nic Lewis An update to the calculations in Lewis and Curry (2014).
by Nicholas Lewis Different agents may have effects on global temperature (GMST) different to those which would be expected simply by reference to the radiative forcing they exert. This difference is encapsulated in the term “forcing efficacy”.
by Judith Curry A burning question for the Paris negotiations: Are the INDCs sufficient to prevent 2 degrees of warming?
by Judith Curry Presentations are now available from the WCRP Workshop on Earth’s Climate Sensitivity.
by Judith Curry Interest is running high this week on the topic of climate sensitivity.
by Nic Lewis A new paper on aerosol radiative forcing has important implications for estimates of climate sensitivity.
by Judith Curry Our new paper on climate sensitivity is now published.
by Robert Ellison Climate sensitivity is large in the vicinity of tipping points but moderate otherwise.