Search Results for: ECS

The ECS is probably above 2K

I have quite a large conference starting tomorrow, so will probably be too busy to write. To keep things ticking over I thought I would post this seminar given by Andrew Dessler, discussing his recent work on constraining the Equilibrium … Continue reading

Posted in Climate change, Climate sensitivity, Research | Tagged , , | 110 Comments

ECS from a modified energy balance approach

Andrew Dessler’s paper (technically Dessler and Forster), which he mentioned in this comment, has now appeared as a pre-print. Essentially, they use an energy balance approach to estimate equilibrium climate sensitivity (ECS), but – as I mentioned in this post … Continue reading

Posted in Climate sensitivity, Global warming, Research, Science, The scientific method | Tagged , , , , , , , | 144 Comments

Confounding ECS estimates

Kate Marvel and colleagues have just published an interesting paper on how [i]nternal variability and disequilibrium confound estimates of climate sensitivity from observations. Essentially they compare three different ways of estimating Equilibrium Climate Sensitivity (ECS): atmosphere-only simulations with observed sea … Continue reading

Posted in Climate change, Climate sensitivity, Research | Tagged , , , , , | 193 Comments

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

Reconciling ECS estimates – again

I’m heading home after giving a public talk, and have a bit of time to write about the recent Armour paper Projection and Prediction: Climate Sensitivity on the rise. It’s basically another attempt to reconcile energy balance estimates for climate … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Judith Curry, Science | Tagged , , , , , | 118 Comments

Prospects for narrowing ECS bounds

I was just going to briefly mention a new paper by Stevens, Sherwood, Bony and Webb in which they present [p]rospects for narrowing bounds on Earth’s equilibrium climate sensitivity. The basic argument is similar to what has – at times … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, IPCC, Science | Tagged , , , , , | 64 Comments

ECS ~1K?????

There is a new paper that is being somewhat uncritically accepted at the new Climate “Skepticism” site (and, yes, the inverted commas are necessary) and at Bishop Hill. It’s by someone called J. Ray Bates and claims to estimate climate … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Comedy, Global warming, Satire | Tagged , , , , , , , | 332 Comments

The TCR-to-ECS ratio

Something I’ve been interested in is whether or not the ratio between the Transient Climate Response (TCR) and the Equilibrium Climate Sensitivity (ECS) best estimates from most of Nic Lewis’s work makes sense. Typically his TCR best estimate is around … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Science | Tagged , , , , , , | 78 Comments

ECS too low?

I’ve regularly written about the Equilibrium Climate Sensitivity (ECS), in particular estimates by Nic Lewis and why they are probably a bit too low. For balance I should probably now mention a new paper called Observational constraints on mixed-phase clouds … Continue reading

Posted in Climate change, Climate sensitivity, Gavin Schmidt, Science | Tagged , , , , , , , | 23 Comments

Constraining model ECS

To follow up on Michael’s post I thought I might just highlight this recent paper by Fasullo, Sanderson & Trenberth called Recent Progress in Constraining Climate Sensitivity With Model Ensembles. It’s hard to summarise, as it’s essentially a summary itself. … Continue reading

Posted in Climate change, Climate sensitivity, Science | Tagged , , , , , | 291 Comments