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Tag Archives: GCMs
Climate sensitivity in CMIP6 GCMs
Anyone who is aware of what’s going on in climate science should have heard that the latest generation of climate models, known as CMIP6, seem to be suggesting a somewhat higher climate sensitivity than suggested by the previous CMIP5 models. … Continue reading
Models are failed hypotheses!
John Christy has written a report for the Global Warming Policy Foundation called climate models have been predicting too much warming. The basic conclusion of the report is that climate models predict far more warming in the tropical troposphere than … Continue reading
Judith Curry confuses laypeople about climate models
Judith Curry has written a report for the Global Warming Policy Foundation called Climate Models for the layman. As you can imagine, the key conclusions is that climate models are not fit for the purpose of justifying political policies to … Continue reading
Posted in Climate sensitivity, ClimateBall, Judith Curry, Science, The scientific method
Tagged Climate models, GCMs, Global Warming Policy Foundation, GWPF, IPCC, Policy
108 Comments
Engineering the software for understanding climate change
Since Judith Curry has a guest post about global climate models and the laws of physics, I thought it would be worth posting this recently released video of a talk about climate modelling (see below). It’s by Steve Easterbrook, who … Continue reading
Posted in ClimateBall, Global warming, Judith Curry, Research, Science
Tagged Climate models, GCMs, Steve Easterbrook, UK Met Offic, UKMO, UM, Unified Model
49 Comments
Model tuning
Came across a very interesting paper on the art and science of climate model tuning. Based on the comments here, it appears that some are interpreting this as confirming their claims that climate models are tuned to give preferred results. … Continue reading
Guest post: Some thoughts on Climate Modeling
This is guest post by Michael Tobis, partly motivated by some discussions we’ve had about modelling. In particular, the difference between modelling in the physical sciences, and modelling in other research areas. My personal – and not entirely ill-informed – … Continue reading
Posted in Climate change, ClimateBall, Global warming, IPCC, Science
Tagged Climate Modeling, Climate models, GCMs, Michael Tobis, Model tuning, Parametrization, Physics
176 Comments
Models don’t over-estimate warming?
I thought I might write about the new paper by Jochem Marotzke and Piers Forster called Forcing, feedback and internal variability in global temperature trends. It’s already been discussed in a Carbon Brief post called claims that climate models overestimate … Continue reading
Nonlinear feedbacks
I’ve written a number of posts about the energy balance models (EBMs) used by Nic Lewis and thought I might write one more (sorry SB 🙂 ). In a previous post, Victor asked what I thought the reasons were for … Continue reading
What else can you do with a GCM?
Since I’m tired/bored of the climate “debate” I thought I might write a quick post about something that’s related to climate change, but probably not particularly controversial. I came across a paper recently by Shields et al. (2014) called Spectrum-driven … Continue reading
Posted in Climate change, Science
Tagged Climate change, GCMs, Habitability, Habitable stars, M-stars, snowball
17 Comments
The length of the “pause”?
In a recent post, Judith Curry highlighted a new paper by Shaun Lovejoy called Return periods of global climate fluctuations and the pause. This is a follow-up of an earlier paper that concluded that the probability of a centennial scale … Continue reading
Posted in Uncategorized
Tagged Climate models, GCMs, Hiatus, Internal variability, Natural variability, Shaun Lovejoy, The "pause"
20 Comments