Category Archives: Climate sensitivity

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

Kooninisms

Gavin Schmidt has a Realclimate post about a recent talk given by Steve Koonin. Somewhat bizarrely, Koonin has a response to Gavin’s post that he has posted on WUWT. Given that Koonin has no climate expertise, presumably he thinks that … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, physicists, Scientists, The scientific method, Watts Up With That | Tagged , , , , , , | 201 Comments