Category Archives: Greenhouse effect

No, it probably isn’t mostly due to changes in clouds!

Posted on November 27, 2021 by ...and Then There's Physics

I haven’t done a paper debunk for a while, but a reader got in touch to ask about a recent paper by Hans Rolf-Dübal and Fritz Vahrenholt, so I thought I would have a quick look. The paper is Radiative … Continue reading →

Posted in Climate change, Climate sensitivity, Global warming, Greenhouse effect | Tagged , , , , , | 34 Comments

Outgoing longwave radiation

Posted on April 30, 2020 by ...and Then There's Physics

Something that often strikes me is that when I think I understand something quite well, there often turns out to be an aspect that I haven’t understood particularly well. I sometimes think that this is can be an important thing … Continue reading →

Posted in Global warming, Greenhouse effect, Philosophy for Bloggers, The philosophy of science, The scientific method, Uncategorized | Tagged , , , , | 41 Comments

Flight free talk

Posted on October 20, 2019 by ...and Then There's Physics

I gave my first ever public climate science talk at a Flight Free event in Edinburgh. If you’re interested in seeing my talk slides, you can download them here. The idea behind Flight Free is to encourage people to pledge … Continue reading →

Posted in Carbon tax, Climate change, Greenhouse effect, Personal, Scientists | Tagged , , , , | 208 Comments

A little knowledge

Posted on August 7, 2019 by ...and Then There's Physics

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 , , , , , | 27 Comments

Models are failed hypotheses!

Posted on May 25, 2019 by ...and Then There's Physics

John Christy has written a report for the Global Warming Policy Foundation called climate models have been predicting too much warming. The basic conclusion of the report is that climate models predict far more warming in the tropical troposphere than … Continue reading →

Posted in Climate change, Climate sensitivity, ClimateBall, Global warming, Greenhouse effect | Tagged , , , , , , , , | 61 Comments

2017: A year in review

Posted on December 30, 2017 by ...and Then There's Physics

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

Arguing about the greenhouse effect – again

Posted on December 18, 2017 by ...and Then There's Physics

There’s been a rather lengthy Twitter thread about the greenhouse effect. In particular, focusing on claims that there is no such thing. Of course, engaging in such discussions so as to actually change anyone’s minds is pointless. However, I think … Continue reading →

Posted in Climate change, ClimateBall, Greenhouse effect, Science | Tagged , , , | 76 Comments

Machine unlearning

Posted on August 22, 2017 by ...and Then There's Physics

Someone sent me a paper by John Abbot and Jennifer Marohasy called the application of machine learning for evaluating anthropogenic versus natural climate change. Their conclusion is that most of the observed warming could be natural and that the Equilibrium … Continue reading →

Posted in Climate change, Climate sensitivity, Global warming, Greenhouse effect, Research, Science | Tagged , , , , | 186 Comments

No, pressure alone does not define surface temperatures!

Posted on August 8, 2017 by ...and Then There's Physics

Eli’s already covered this but I thought I would present a slightly different argument. The topic is a recent paper by Ned Nikolov and Karl Zeller called new insights on the physical nature of the atmospheric greenhouse effect deduced from … Continue reading →

Posted in Climate change, Greenhouse effect, Research, Science | Tagged , , , , | 135 Comments

Hawking is wrong

Posted on July 7, 2017 by ...and Then There's Physics

I guess the big alarmist news at the moment is that Stephen Hawking has been quoted as saying: Trump’s action could push the Earth over the brink, to become like Venus, with a temperature of two hundred and fifty degrees, … Continue reading →

Posted in Climate change, ClimateBall, Global warming, Greenhouse effect, Science | Tagged , , , , , | 64 Comments