Guest post by KEVIN KILTY An Atmospheric Transmission Model Introduction This post is not one I planned to do. It has grown from work I was doing with MODTRAN (moderate…
Category: Climate Models
Earth system models underestimate carbon fixation by plants in the high latitudes
From Nature Communications. Abstract Most Earth system models agree that land will continue to store carbon due to the physiological effects of rising CO2 concentration and climatic changes favoring plant…
Feedback is not the big enchilada
By Christopher Monckton of Brenchley I am most grateful to Mr Stokes for his interesting recent posting in which he explains what he sees as the difference between official climatology’s…
Latest Global Temp. Anomaly (May ’19: +0.32°C) A Simple “No Greenhouse Effect” Model of Day/Night Temperatures at Different Latitudes
Reposted from Dr. Roy Spencer’s blog June 7th, 2019 by Roy W. Spencer, Ph. D. Abstract: A simple time-dependent model of Earth surface temperatures over the 24 hr day/night cycle…
Demystifying feedback.
Guest post by Nick Stokes, People outside climate science seem drawn to feedback analogies for climate behaviour. Climate scientists sometimes make use of them too, although they are not part…
Cycles of Rapid Climate Warming
By Jim Steele Published in the Pacifca Tribune May 28, 2019 What’s Natural Cycles of Rapid Climate Warming The globally averaged temperature rose 1.5°F from 1880 to today. Various narratives…
Climate Modellers Waiting for Observations to Catch Up with Their Predictions
Guest essay by Eric Worrall h/t Dr. Willie Soon; In climate science, when your model predictions are wrong, you wait for the world to correct itself. New climate models predict…
A Simple Model of the Atmospheric CO2 Budget
Reposted from Dr Roy Spencer’s blog April 11th, 2019 by Roy W. Spencer, Ph. D. SUMMARY: A simple model of the CO2 concentration of the atmosphere is presented which fairly…
Why climate predictions are so difficult
From Climate Etc. by Judith Curry An insightful interview with Bjorn Stevens. Frank Bosse provided this Google translation of an interview published in Der Spiegel -Print-Issue 13/2019, p. 99-101. March…
Study: Climate change is leading to unpredictable ecosystem disruption for migratory birds
Ithaca, NY–Using data on 77 North American migratory bird species from the eBird citizen-science program, scientists at the Cornell Lab of Ornithology say that, in as little as four decades,…
Predicting climate change
Understanding carbon cycle feedbacks to predict climate change at large scale From ETH Zurich Thomas Crowther identifies long-disappeared forests available for restoration across the world. He will describe how there…
Contemporary climatic analogs for 540 North American urban areas in the late 21st century
I guess sometimes you just have to throw the officially acknowledged lack of regional skill for GCM’s out the window~ctm From Nature Communications Abstract A major challenge in articulating human…
Early 20th Century Warming – Polar Amplification, Model-Data & Model-Model Comparisons
A Guest Post By Bob Tisdale In this post, we’re going to illustrate how poorly climate models used by the IPCC for their 5th Assessment Report simulate the polar amplification…
Reassessing Model Projections for Hot Days from RCPs –
An Aussie Perspective Dr B Basil Beamish Hot Day Projections in Australia At the end of 2015, the CSIRO and Bureau of Meteorology (BOM) released a joint technical report that…
Global Mean Surface Temperature: Early 20th Century Warming Period – Models versus Models & Models versus Data
A Guest Post By Bob Tisdale This is a long post: 3500+ words and 22 illustrations. Regardless, heretics of the church of human-induced global warming who frequent this blog should…
Reassessing the RCPs
From Judith Curry’s Climate Etc Posted on January 28, 2019 by curryja | by Kevin Murphy A response to: “Is RCP8.5 an impossible scenario?”. This post demonstrates that RCP8.5 is…
Mathematical modeling illusions
The global climate scare – and policies resulting from it – are based on models that do not work Dr. Jay Lehr and Tom Harris For the past three decades,…
Current fossil fuel infrastructure does not yet commit us to 1.5 °C warming
From Nature Abstract Committed warming describes how much future warming can be expected from historical emissions due to inertia in the climate system. It is usually defined in terms of…
Greenland Near-Surface Land Air Temperature Data from Berkeley Earth Present Some Surprises
I enjoy surprises in data, especially when they might make alarmists unhappy. Willis Eschenbach’s post Greenland Is Way Cool at WattsUpWithThat prompted me to take a look at the Berkeley…
A Sea-Surface Temperature Picture Worth a Few Hundred Words!
We covered this paper when it was first released, here is some commentary on it – Anthony Guest essay by By PATRICK J. MICHAELS On January 7 a paper by Veronika Eyring and…
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