Category Archives: Climate sensitivity

Different perspectives

I’ve been reflecting a little on some of the recent discussions I’ve had, mostly on Twitter, with those who have more expertise in emission scenarios, and energy systems, than in physical climate science specifically. I’ve found it a somewhat frustrating … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Philosophy for Bloggers, Policy, Scientists, The philosophy of science | Tagged , , , , , | 11 Comments

Worst case scenarios, or not?

I’ve been thinking a bit more about the debate around high emission scenarios, which I found rather frustrating. I think it’s an important issue, but the manner in which some people choose to frame this does make it difficult to … Continue reading

Posted in Carbon tax, Climate change, Climate sensitivity, ClimateBall | Tagged , , , , , | 47 Comments

Propagation of nonsense – part II

I thought I would look again at Pat Frank’s paper that we discussed in the previous post. Essentially Pat Frank argues that the surface temperature evolution under a change in forcing can be described as where is an enhancement factor … Continue reading

Posted in Climate sensitivity, ClimateBall, physicists, Research, Satire, Scientists | Tagged , , , , | 122 Comments

Constraining unforced variability

Pages 2k has a new Nature paper called Consistent multidecadal variability in global temperature reconstructions and simulations over the Common Era. What they do is present 2,000-year-long global mean temperature reconstructions using seven different statistical methods that draw from a … Continue reading

Posted in Climate change, Climate sensitivity, Research, The scientific method | Tagged , , , , , | 8 Comments

High emission scenarios

I thought I might briefly reflect, again, on the whole RCP8.5 discussion. In case anyone missed it, there has been a lengthy online discussion about RCP8.5, which is a concentration/forcing pathway that leads to a change in forcing of 8.5 … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Severe Events | Tagged , , , , , | 132 Comments

A little knowledge

There is apparently a paper from a couple of years ago that is currently doing the rounds and that argues that the Molar Mass Version of the Ideal Gas Law Points to a Very Low Climate Sensitivity. The suggestion is … Continue reading

Posted in Climate sensitivity, Greenhouse effect, Pseudoscience, Science, The scientific method | Tagged , , , , , | 26 Comments

Climate sensitivity and decadal temperature variability

There are some who argue that natural/internal variability can play a role in driving long-term warming, and – hence – could explain a substantial fraction of recent warming. This, however, creates a bit of a paradox; if the system responds … Continue reading

Posted in Climate sensitivity, Research, The scientific method | Tagged , , , , , | 80 Comments