Reto Knutti

Professor, ETH Zürich

Expertise: Climate projections, Attribution, Feedbacks, and Sensitivity

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ARTICLES REVIEWED

Financial Post commentary misleads about warming effect of greenhouse gas emissions by cherry-picking studies

in Financial Post, by Ross McKitrick

— 22 Jun 2018

"This is an opinion piece in the "lukewarm" category, arguing that climate models are wrong, future warming will be small, based on carefully selected publications, misleading pres..

CLAIMS REVIEWED

On BBC Newsnight, Myron Ebell falsely claims climate models exaggerate warming

CLAIM
"The rate of warming according to the data is much slower than the models used by the IPCC"

SOURCE: Myron Ebell, BBC Newsnight, 8 Oct. 2018

VERDICT

Prof. John Christy incorrectly claims to show climate models are too sensitive to carbon dioxide

CLAIM
"the real atmosphere is less sensitive to CO2 than what has been forecast by climate models"

SOURCE: John Christy, The Daily Caller, 29 Nov. 2017

VERDICT

Daily Wire article incorrectly claims climate models have overestimated warming

CLAIM
"climate models have overestimated the amount of global warming and failed to predict what climatologists call the warming ‘hiatus’"

SOURCE: James Barrett, The Daily Wire, 19 Sep. 2017

VERDICT

Heartland Institute report’s claim that climate models are too sensitive to CO2 does not reflect evidence

CLAIM
"[climate models] systematically over-estimate the sensitivity of climate to carbon dioxide ... and modelers exclude forcings and feedbacks that run counter to their mission"

SOURCE: Craig Idso, Robert Carter, S. Fred Singer, Heartland Institute, 2016

VERDICT