Category Archives: Global warming

The two-degree delusion?

Ted Nordhaus, of Breakthrough Institute fame, has a recent article in Foreign Affairs called [t]he two-degree delusion. Basically, it argues that we cannot possibly achieve this target without harming the poor, and that continuing to try and do so also … Continue reading

Posted in Climate change, Global warming, GRRRROWTH, Policy | Tagged , , , , | 73 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 , , , , , , , | 142 Comments

SciComm for the IPCC

There is a newly released Communications Handbook for IPCC scientists. It’s already been covered in a Guardian article and in a Realclimate post. There are six basic principles Be a confident communicator Talk about the real world, not abstract ideas … Continue reading

Posted in Climate change, Global warming, Policy, Research, Scientists | Tagged , , , , | 128 Comments

Guest post: A ‘new’ measurement of climate sensitivity?

This is a guest post by Mark Richardson, who is currently a Caltech Postdoctoral Scholar at the NASA Jet Propulsion Laboratory. Mark has a particular interest in the role of clouds in climate change. This post is a response to … Continue reading

Posted in Climate change, Climate sensitivity, Global warming, The scientific method | Tagged , , , | 149 Comments

2017: A year in review

I’ve now been writing this blog for almost 5 years and I still don’t quite know what I’m trying to achieve, if anything. Hopefully a blog that presents a reasonable representation of our current understanding of climate science, while also … Continue reading

Posted in Climate change, ClimateBall, Global warming, Greenhouse effect, Personal, physicists, Pseudoscience, Roger Pielke Jr | Tagged , , , , , , , , , , | 30 Comments

Galactic cosmic rays

There’s a recent Nature Communications paper by Svensmark et al. called [i]ncreased ionization supports growth of aerosols into cloud condensation nuclei. The basic idea is that cosmic rays (energetic particles typically accelerated by shock waves) can influence the growth of … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Science, Sound Science (tm) | Tagged , , , , , , , | 10 Comments

What if global warming ends up being greater than we thought?

I recently wrote a post about the Brown & Caldeira paper which suggests that climate sensitivity may be on the high side of the range. Rather predictably, Nic Lewis has a guest post on Climate Etc in which he looks … Continue reading

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, GRRRROWTH, Science | Tagged , , , , , , | 71 Comments