Tag Archives: Climate models

Negative emissions

I went to some Departmental talks recently and discovered that some of my colleagues are researchering possible carbon sequestration technologies. This could be very important, but appealing to negative emission technologies is often quite strongly criticised. The basic argument (which … Continue reading

Posted in Climate change, Global warming, Research, Science | Tagged , , , , , , | 34 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 , , , , , , | 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

Posted in Climate change, Climate sensitivity, Global warming, Judith Curry, Science | Tagged , , , , , | 262 Comments

Full-depth OHC

Since my holiday is now over, I thought I might briefly comment on a recent paper by Cheng et al., called Observed and simulated full-depth ocean heat-content changes for 1970–2005. John Abraham, one of the authors, has already discussed it … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research, Science | Tagged , , , , , , , , | 39 Comments

Models versus satellites

A graph that is fairly commonly promoted to – apparently – illustrate that models and observations have diverged, is one produced by John Christy which compares models to satellite/balloon data for the troposphere. Ignoring all the potential issues with this … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Gavin Schmidt, Global warming, Science | Tagged , , , , , , , | 27 Comments

Time dependent feedbacks

There’s a very interesting new paper by Gregory and Andrews called Variation in climate sensitivity and feedback parameters during the historical period. The motivation seems to be to try and reconcile why estimates of the effective climate sensitivity using recent … Continue reading

Posted in Climate sensitivity, Global warming, Science | Tagged , , , , , , | 49 Comments

Forcing efficacy

There’s a new paper, discussing climate sensitivity, by Marvel, Schmidt, Miller & Nazarenko called Implications for climate sensitivity from the response to individual forcings. Before I discuss the paper, I should really advertise the lead author’s blog, arguably one of … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Gavin Schmidt, Global warming, Science | Tagged , , , , , , , | 110 Comments