Category Archives: Climate sensitivity

The effect of permafrost on the ZEC

I’ve written a number of posts about warming commitments, in particular the zero emission commitment (ZEC). In other words, how much additional warming will there be after emissions get to zero. The answer is that on multi-decadal timescales [the ZEC] … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research | Tagged , , , , , | 33 Comments

A chat with Mallen Baker

Mallen Baker is a commentator who runs a youtube channel called Dangerously Reasonable. He tackles contentious issues and tries to assess the various lines of evidence that may, or may not, support what someone is promoting. For example, Mallen did … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Policy, The philosophy of science | Tagged , , , , | 174 Comments

IPCC AR6 WG1

The site has been a little quiet, but since this blog has been going long enough to have commented on the release of the IPCC AR5 WG1 report, it only seems right to comment on the release of the IPCC’s … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, IPCC | Tagged , , , | 85 Comments

Speaking out

Bill McGuire, who is Professor Emeritus of Geophysical & Climate Hazards at UCL, has written a post suggesting that climate scientists should speak out more and that they should Come down off the fence and choose the path you know, … Continue reading

Posted in advocacy, Climate change, Climate sensitivity, Scientists | Tagged , , , , | 84 Comments

The Last Glacial Maximum

There’s an interesting paper by Seltzer et al. called [w]idespread six degrees Celsius cooling on land during the Last Glacial Maximum, which I became aware of through a Twitter thread by Werner Aeschbach. The reason it’s interesting is that it … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research | Tagged , , , , , | 7 Comments

Warming commitments

There’s been quite a lot of recent discussion about warming commitments. It started with an article by Bob Berwyn called Net Zero Emissions Would Stabilize Climate Quickly Says UK Scientist, followed soon after by one saying [w]arming already baked in … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research | Tagged , , , , , , | 42 Comments

Climate sensitivity – narrowing the range

Since I’ve discussed climate sensitivity on a number of occasions, it seems worth highlighting the new paper that assesses climate sensitivity using multiple lines of evidence. The authors include many who will be familiar to my regular readers. The key … Continue reading

Posted in Climate change, Climate sensitivity, Philosophy for Bloggers, Research, Science | Tagged , , , , , | 98 Comments

Can climate sensitivity be really high?

The answer to the question in my post title is – unfortunately – yes. The generally accepted likely range for equilibrium climate sensitivity (ECS) is 2oC – 4.5oC. This doesn’t mean that it has to fall within this range, it … Continue reading

Posted in Climate change, Climate sensitivity, Research, Science, The philosophy of science | Tagged , , , , | 36 Comments

Mitigation, adaptation, suffering

I’ve been struggling, more than usual, to find things to write about. Everything seems to just be a bit of a mess. The pandemic itself, how it’s been handled in some cases, and the protests in the USA, especially how … Continue reading

Posted in advocacy, Climate change, Climate sensitivity, Philosophy for Bloggers | Tagged , , | 41 Comments

A couple of highlights

Since I haven’t had much chance to write anything recently, I thought I would briefly advertise a couple of papers that may be of interest to my regular readers. One is by Clare Marie Flynn and Thorsten Mauritsen and is … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, Research, Science | Tagged , , , , | 19 Comments