Physical Attraction

We're going there. In this episode, I discuss why civilization is not going to imminently collapse due to climate change, explain why doomism is a new form of denialism, and debunk some of its most misleading claims.

In this episode, we will continue our analysis of Direct Air Capture and conclude the series on negative emissions - crucial component of decarbonisation, or a techno-utopian distraction from the real problems we face? [Don't expect an actual answer]

Hi all! This is a slightly special bonus episode. Some years ago I had plans for another series "Black Mirror IRL", which was going to be a series of episodes looking into the technologies mentioned and featured in the Netflix Series Black Mirror. Is anyone working on these technologies in real life? What would their potential social implications be if they were developed? How scientifically feasible would it actually be to develop something like this? The plan would be to explore one technology alongside each episode of the show. However, time has passed and I've moved onto other projects, and now I have nowhere near enough time to finish this series alongside everything else, so I only ever got around to recording a single, pilot episode for that putative series, which has been sitting on my hard drive for ages. Rather than let it go to waste - as it could be years if ever before I get back around to this project again - I am releasing it as a bonus episode for you to enjoy. But one thing I would say is that I would really appreciate your feedback on this episode. Do you think the series is a good idea? Would you like to see more episodes along these lines? How do you think I could improve it? Any and all suggestions are gratefully received. Maybe someday the series as a whole will return. Thank you all as ever for your support for the show.

"Give me a tanker full of iron, and I'll give you a new Ice Age." It might sound like something Hank Scorpio would say, but this episode will deal with the very real idea of stimulating plankton blooms to remove CO2 from the atmosphere - ocean iron fertilization.

Mention carbon capture, and the refrain you'll often hear is "why invent a machine that captures CO2? We already have one - it's called a tree." But is large-scale afforestation as a negative emissions solution so simple? We dig into its potential in this episode of our series on negative emissions.

In this episode, we get into some of the specific technologies that might be called upon to deliver negative emissions at scale. Specifically, we're looking at the advantages, disadvantages, and concerns surrounding BECCS (Bioenergy with Carbon Capture and Storage.)

Increasing levels of negative emissions are envisioned by models in climate-change scenarios that are compatible with the Paris Agreements. In this episode, we talk about some of the geopolitical implications for trying to deliver this, and the alternative futures that we can envision. Do "thinly-veiled techno-utopias shore up the Paris Agreement?"

The book club returns, with a two-part review and overview of anthropologist Jason Hickel's book "The Divide", about global inequality, its historical origins, and possible solutions in the future.

To close out this series of news episodes, we discuss the depressing failure of carbon capture and storage projects in Australia, as well as the far-too-slow approach to climate change adaptation across the world.

Updates on the Softbank Vision Fund and the sad fate of Pepper the robot.

In this news-y episode, I will give you some updates on how the show is progressing, share some listener emails on our cosmology series, and set up next episode's discussion of some recent results in high-energy physics.

At the dawn of theoretical cosmology, Einstein introduced the so-called "Cosmological Constant" into his equations to explain how the Universe could be static and unchanging in time. He would later say that it was his greatest mistake.