Tag Archives: Climate sensitivity

Combining different ECS estimates

I wanted to briefly highlight a new paper by Nic Lewis and Peter Grünwald called [o]bjectively combining AR5 instrumental period and paleoclimate climate sensitivity evidence. You may want, however, to be cautious of the term objective. As the title indicates, … Continue reading

Posted in Climate change, Climate sensitivity, Research, Science | Tagged , , , , , , | 133 Comments

Infrared absorption of atmospheric carbon dioxide

Geoff Price made me aware of a paper, by an apparently highly published physicist, that considers the infrared absorption of atmospheric carbon. It concludes that CO2 is a very weak greenhouse gas and cannot be accepted as the main driver … Continue reading

Posted in Climate sensitivity, physicists, Pseudoscience, Research, The scientific method | Tagged , , , , , , | 40 Comments

A bit more about clouds

A few years ago I posted a video by Andrew Dessler that was discussing whether or not Equilibrium Climate Sensitivity could be less than 3oC. The bottom line was that the best estimate for ECS is about 3oC. Given that … Continue reading

Posted in Climate sensitivity, ClimateBall, Global warming, Research, Science, The scientific method | Tagged , , , , , , , , | 33 Comments

Beyond equilibrium climate sensitivity

Since I’ve written about climate sensitivity before, and since I have a few free moments, I thought I would briefly highlight a new paper by Knutti, Rugenstein, and Hegerl called Beyond Equilibrium Climate Sensitivity. It’s really a review of a … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research, The scientific method | Tagged , , , , , , , | 3 Comments

Climate model tuning

I wrote a post about model tuning that discussed a paper that argued for more transparency in how climate models are tuned. Gavin Schmidt, and colleagues, have now published a paper that discusses the Practice and philosophy of climate model … Continue reading

Posted in Climate sensitivity, Gavin Schmidt, Research, Science, The scientific method | Tagged , , , , , , | 62 Comments

Temperature targets

I realise Michael Tobis is planning a follow-up to his post, but I thought would quickly pen this post about temperature targets, for example the Paris target of keeping the increase in global average temperature to well below 2°C above … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, IPCC, Policy, Politics, Science | Tagged , , , , , , | 38 Comments

Lukewarmers resurgent

I’ve noticed a slight resurgence in those claiming to be lukewarmers and trying to argue that this is some kind of reasonable middle ground. I’ve written about lukewarmers before, but the basic issue with the lukewarmer argument is that they … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Greenhouse effect, Politics, Science | Tagged , , , , | 659 Comments