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Topic: Permafrost

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[Episode #195] – Permafrost and Climate ‘Tipping Points’

Apr 5 2023

Is the Arctic permafrost in a warming feedback loop that will unleash a methane bomb, pushing the planet past a tipping point and into inevitable climate doom?

Not precisely.

But the warming permafrost does release greenhouse gases, and they do matter. Understanding the Arctic permafrost's role in the global climate cycle is important. And there absolutely is alarming evidence of climate change in the Arctic, to which we must pay attention.

In this episode, permafrost researcher Dr. Gustaf Hugelius of Stockholm University explains what the best scientific evidence says about the thawing of Arctic permafrost and its significance to the climate. We also debunk some of the hyperbolic claims that have been made about it. You’ll learn why, although there are climate feedback loops acting in the Arctic, they are much more predictable and modest in effect than they have been made out to be. You’ll also learn that there are no well-defined “tipping points,” nor is there likely to be a ’methane bomb’ emerging from the permafrost.

So if you’ve been worrying that a tipping point emanating from the Arctic is going to render the whole project of climate action futile, you need to listen to this episode. It’s not so.

Geek rating: 6

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[Episode #163] – Transition in Russia Part 2

Jan 5 2022

Mini Episode

This is the second part of our nearly four-hour interview with Professor Thane Gustafson on his new book, Klimat: Russia in the Age of Climate Change, about Russia’s attitude toward climate change, and how the nation will fare in the energy transition.

In part one of this interview, which we featured in Episode #162, we discussed Russia’s oil sector. In this second part, we talk about Russia’s other energy resources, including natural gas, coal, nuclear technology, and renewables, as well as its hopes to pivot to hydrogen production for export to Europe and how it might deal with the pending European carbon border adjustment mechanism. We’ll also discuss Russia’s perspective on climate change and its role in addressing it, and wrap up the conversation with the outlook for Russia’s fortunes and climate vulnerabilities as the global energy transition and climate action proceed.

Geek rating: 6

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[Episode #40] – Climate Science Part 2 – Taking Planetary Temperatures

Apr 5 2017

Mini Episode

In this second episode of our mini-series on climate science, we begin to dive a bit deeper on narrower subjects, starting with a look at how we take the Earth’s temperature, on land, on the sea surface, and deeper in the ocean depths. Along the way, we discuss temperature measurements at the heart of the “Climategate” nothingburger, the 2013 “Pausebuster” paper proving the supposed “pause” or “hiatus” in global warming trends didn’t actually happen, and a recent kerfuffle over that paper. We also find out if the melting of permafrost and undersea methane clathrates could lead the planet into runaway global warming, and discuss some research on the net emissions effect of switching from coal to gas in power generation, including the thorny issue of fugitive emissions from natural gas production and distribution. And finally, we’ll take another look at the question of decoupling economic growth from energy consumption, and how emissions are counted in the first place. After listening to this interview, you’ll be well-equipped to listen critically to both the latest scientific findings on global temperatures, and to the arguments of global warming skeptics. Plus, we’ll talk about the implications of Trump’s proposed budget, which would gut the very agencies that deliver these crucial scientific measurements.

Geek rating: 6

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