Tag Archives: Negative emissions

Some thoughts about net-zero

Posted on April 29, 2021 by ...and Then There's Physics

There’s been a reasonable vigorous, but pleasant, debate on Twitter about “net-zero”. It was largely motivated by a Conversation article by James Dyke, Robert Watson, and Wolfgang Knorr called Climate scientists: concept of net zero is a dangerous trap. The basic … Continue reading →

Posted in Climate change, Environmental change, Policy, Research, Scientists | Tagged , , , , , , | 15 Comments

Rethinking climate policy

Posted on July 3, 2018 by ...and Then There's Physics

Roger Pielke Jr has been promoting his new paper in Issues in Science and Technology. The paper is called opening up the climate policy envelope and Roger has been suggesting that people should read it. I’ve read it a couple … Continue reading →

Posted in advocacy, Carbon tax, IPCC, Policy, Roger Pielke Jr | Tagged , , , , | 290 Comments

Carbon Dioxide Removal

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

There’s a bit of a debate going on a about economics and ethics, mostly on MT’s blog, but also on Stoat, and a little bit here. I have to be honest, I’m not entirely sure what people are actually disagreeing … Continue reading →

Posted in Climate change, ClimateBall, Global warming, Policy, Politics | Tagged , , , , , , , | 77 Comments

Kevin Anderson: how numbers reveal another reality

Posted on August 9, 2017 by ...and Then There's Physics

I’ve finally watched the video of Kevin Anderson’s talk (posted in a comment that I currently can’t find) which was part of the Cambridge Climate Lecture Series. I found it quite uncomfortable. He addressed things that we typically avoid. The … Continue reading →

Posted in advocacy, Climate change, Policy, Politics, Research, Scientists | Tagged , , , , , | 121 Comments

Negative emissions

Posted on November 18, 2016 by ...and Then There's Physics

I went to some Departmental talks recently and discovered that some of my colleagues are researchering possible carbon sequestration technologies. This could be very important, but appealing to negative emission technologies is often quite strongly criticised. The basic argument (which … Continue reading →

Posted in Climate change, Global warming, Research, Science | Tagged , , , , , , | 34 Comments

Emission reductions, negative emissions, and overshoots

Posted on August 8, 2016 by ...and Then There's Physics

I was wanting to briefly discuss a paper I ran across that looks at What would it take to achieve the Paris temperature targets? The basic idea is to develop emission pathways that depend on three basic parameters; the time … Continue reading →

Posted in Climate change, Climate sensitivity, Global warming, IPCC, Science | Tagged , , , , , , | 67 Comments

Misrepresented?

Posted on November 29, 2015 by ...and Then There's Physics

Oliver Geden has suggested that I misrepresented him in my earlier post. Rather than explaining why, he tweeted one his papers and suggested I should read it, rather than base my views on short quotations. Well, I have, and still … Continue reading →

Posted in Climate change, Climate sensitivity, Global warming, IPCC, Science | Tagged , , , , , , | 78 Comments