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Category: climate models

  • climate models Sensitivity & feedbacks
    March 9, 2026

    Compensation between cloud feedback + ECS and aerosol-cloud forcing in CMIP6 models

    By Nic Lewis An important paper, Wang et al.[1], on the relationships between cloud feedback, climate sensitivity (ECS) and aerosol-cloud… Read more.

  • climate models Sensitivity & feedbacks
    March 9, 2026

    Disconnect in the relationship between GMST and ECS

    by Kenneth Fritsch Abstract. An analysis is presented of  he disconnection between the CMIP5 and CMIP6 Historical and Future periods… Read more.

  • climate models
    March 9, 2026

    New confirmation that climate models overstate atmospheric warming

    by Ross McKitrick Two new peer-reviewed papers from independent teams confirm that climate models overstate atmospheric warming and the problem… Read more.

  • climate models Scientific method Sensitivity & feedbacks
    March 9, 2026

    Emergent constraints on TCR and ECS from historical warming in CMIP5 and CMIP6 models

    By Nic Lewis This is a brief comment on a new paper[i] by a mathematician in the Exeter Climate Systems… Read more.

  • climate models
    March 9, 2026

    Structural errors in global climate models

    by Gerald Browning Climate model sensitivity to CO2 is heavily dependent on artificial parameterizations (e.g. clouds, convection) that are implemented… Read more.

  • climate models Sensitivity & feedbacks Solar Uncertainty
    March 9, 2026

    Plausible scenarios for climate change: 2020-2050

    by Judith Curry A range of scenarios for global mean surface temperature change between 2020 and 2050, derived using a… Read more.

  • climate models
    March 9, 2026

    Inconsistency between historical and future CMIP5 simulations

    by Kenneth Fritsch Identification of significant differences between the historical and future CMIP5 simulations for intrinsic climate sensitivities. Read more.

  • climate models
    March 9, 2026

    Analysis of a carbon forecast gone wrong: the case of the IPCC FAR

    by Alberto Zaragoza Comendador The IPCC’s First Assessment Report (FAR) made forecasts or projections of future concentrations of carbon dioxide… Read more.

  • climate models Sensitivity & feedbacks
    March 9, 2026

    Explaining the Discrepancies Between Hausfather et al. (2019) and Lewis&Curry (2018)

    by Ross McKitrick Challenging the claim that a large set of climate model runs published since 1970’s are consistent with… Read more.

  • climate models Sensitivity & feedbacks Uncategorized
    March 9, 2026

    Comment by Cowtan & Jacobs on Lewis & Curry 2018 and Reply: Part 2

    By Nic Lewis In an earlier article here I discussed a Comment on Lewis and Curry 2018 (LC18) by Kevin… Read more.

  • climate models Uncertainty
    March 9, 2026

    Escape from model land

    by Judith Curry “Letting go of the phantastic mathematical objects and achievables of model- land can lead to more relevant… Read more.

  • climate models Prediction Sensitivity & feedbacks
    March 9, 2026

    Why climate predictions are so difficult

    by Judith Curry An insightful interview with Bjorn Stevens. Read more.

  • climate models IPCC Oceans
    March 9, 2026

    Is ocean warming accelerating faster than thought?

    by Nic Lewis *** UPDATE : response to comments by Zeke Hausfather appended There are a number of statements in… Read more.

  • climate models IPCC Sensitivity & feedbacks
    March 9, 2026

    Climate sensitivity to cumulative carbon emissions

    By Nic Lewis An observational estimate of transient (multidecadal) warming relative to cumulative CO2 emissions is little over half that… Read more.

  • climate models IPCC
    March 9, 2026

    Remarkable changes to carbon emission budgets in the IPCC Special Report on Global Warming of 1.5C

    by Nic Lewis A close reading of Chapters 1 and 2 of the IPCC Special Report on Global Warming of… Read more.

  • climate models
    March 9, 2026

    A Test of the Tropical 200-300 mb Warming Rate in Climate Models

    by Ross McKitrick I sat down to write a description of my new paper with John Christy, but when I… Read more.

  • climate models Sensitivity & feedbacks
    March 9, 2026

    Warming patterns are unlikely to explain low historical estimates of climate sensitivity

    By Nic Lewis A critique of of a new paper by Andrews  et al., Accounting for changing temperature patterns increases historical… Read more.

  • climate models Uncertainty
    March 9, 2026

    Uncertainty in climate projections

    by Judith Curry My article Climate Uncertainty and Risk has now been published in the Summer 2018 edition of CLIVAR… Read more.

  • climate models Policy Uncertainty
    March 9, 2026

    Climate uncertainty & risk

    by Judith Curry I’ve been invited to write an article on climate uncertainty and risk. Read more.

  • climate models
    March 9, 2026

    Of boundary and initial conditions

    by Dan Hughes and Tomas Milanovic Further reflections on the application of the divergence theorem to the Earth’s climate system. Read more.

  • climate models
    March 9, 2026

    Energy budgets, climate system domains and internal variability

    by Dan Hughes It is not a boundary value problem. Read more.

  • climate models Sensitivity & feedbacks
    March 9, 2026

    Brown and Caldeira: A closer look shows global warming will not be greater than we thought

    by Nic Lewis A critique of a recent paper by Brown and Caldeira published in Nature that predicted greater than… Read more.

  • climate models
    March 9, 2026

    Are Climate Models Overstating Warming?

    by Ross McKitrick A number of authors, including the IPCC, have argued that climate models have systematically overstated the rate… Read more.

  • Attribution climate models
    March 9, 2026

    Prospects for a Prolonged Slowdown in Global Warming in the Early 21st Century

    by Nic Lewis [W]e estimate that the warming slowdown (< 0.1 K/decade trend beginning in 1998) could persist, due to… Read more.

  • climate models
    March 9, 2026

    Climate models for lawyers

    by Judith Curry I have been asked to write an Expert Report on climate models. ***SEE UPDATE Read more.

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