BC ECONOMY
Saved by @Mollyycolllinss

1. Oil & gas companies still expect the world to consume large quantities of oil & gas in 2050. That view would seem to put the oil giants in conflict with the IPCC.

๐ˆ๐ง ๐Ÿ๐š๐œ๐ญ, ๐ญ๐ก๐ž ๐จ๐ฉ๐ฉ๐จ๐ฌ๐ข๐ญ๐ž ๐ข๐ฌ ๐จ๐Ÿ๐ญ๐ž๐ง ๐ญ๐ซ๐ฎ๐ž...

@bstorrow

 2. [O]il companies & the IPCC alike rely on a contentious strategy known as negative emissions โ€” the practice of pulling carbon dioxide out of the atmosphere. In theory, NETs would buy the world a little more time to phase out the use of fossil fuels ...
3. "[N]one of these models are forecast machines" @DetlefvanVuuren

"It's just an element, a tool to explore different trajectories on the basis of the knowledge we have today & to see what ... might encounter."

Both critics & modelers agree such nuance is often lost
4. Many policymakers have concluded that negative emission technologies are necessary for meeting the Paris Agreement's temperature benchmarks, even if modelers themselves are more circumspect.
5. "How great would it be if, rather than just having pathways that kind of put forward technological solutions like BECCS, that we would have pathways that really articulate in clear terms the need for immediate discussions & action towards phasing out fossil fuels" @wim_carton
6. "It's not like, oh, so we can definitely continue exploiting gas or using gas & then we can maybe think about also implementing CCS. No, it is only possible to exploit further [gas] ... if you really meet those key milestones in CCS development globally" @JoeriRogelj
7. [M]odels generally assume that NETs will wipe out anywhere from a few hundred billion tonnes of carbon dioxide to well over a trillion over the course of this century.
8. Oil companies are less reliant on NETs than IPCC.

BP projected BECCS would reduce emissions by 1.5GtCOโ‚‚/yr in 2050.

Equinor didn't even model BECCS because it said the technology's future was too uncertain.

The IPCC sees BECCS capturing 3-7GtCOโ‚‚/yr in 2050
9. There's a catch, though.

The pathways the models produce aren't necessarily the only ones possible. Most of the time, they're just the cheapest.
10. "If people see the UNFCCC, the actual document of the convention, it is stated that climate change mitigation should be pursued in a cost-effective manner" @JoeriRogelj
11. "If we bring this particular problem into the model & let the model try to solve it, then obviously it's part of the least-cost solution to have some of these negative emissions out there" @DetlefvanVuuren
12. "There is a sense that these scenarios are modeling the real world, and that is not necessarily how the world works," said me.
13. "What would it take to deploy hundreds of CCS facilities in the U.S. today? Modelers would say if you had $100-a-ton tax, it would pop everywhere. I struggle to see how you would deploy so much CCS in political reality" said me.

๐–๐ก๐š๐ญ ๐š๐ซ๐ž ๐ˆ๐€๐Œ๐ฌ ๐ฆ๐จ๐๐ž๐ฅ๐ฅ๐ข๐ง๐ ?
14. Freelancing now...

What is cost-effective? We assume that this means discounting & optimising costs over the 100 years, assuming everything runs perfectly smoothly & everyone behaves, & we know everything (like costs).

The world is not this nice, unfortunately...
15. A nice illustration comes from @DetlefvanVuuren, where he modelled alternative pathways that didn't require BECCS.

They could not model the cost effectiveness of this pathway. Is it cheaper or more expensive than a BECCS pathway? We don't know!

https://t.co/XnBaB1JDWZ
16. Another nice example is the low-energy demand scenario (LED), where system costs of the demand reductions were not modelled either.

It is hard to trade-off supply-side & demand-side costs. This means we only estimate cost-effective on supply-side.

https://t.co/9lfUSFm8sp
17. Even the IPCC found that including demand reductions halved costs, noting they could not model the costs of reducing demand. This was in 2014 (AR5)...
https://t.co/WALF1IPZ9L
18. While the UNFCCC argues for cost-effective strategies, the assumption here is that IAMs are actually modelling cost-effective.

Is cost-effective, as defined in an IAM, the same as the real-world definition of cost-effective?

This is the question we need to address...
19. ...and should cost-effective include real-world bumpiness. Like justice & equity issues, risk premiums, cost & investment uncertainties, inefficient climate policies (like standards over taxes), election of Trump or Morrison, technical barriers, social barriers, etc, etc.
20. We have to put the scenario outputs in the context of the assumptions used to generate them. And this goes well beyond technology costs, but also has to address overarching structural questions on how the climate problem is framed & implemented in a model.

/end

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SALUTATIONS you fantastic denizens of the internet! The first #FridayNightHistory of 2021 is here! This week, a new mystery: the true name of "John Williams," Japanese Veteran of the American Civil War.

Yeah, you heard right. And he's not the only one, either.


Now-- I know, I know. Ordinarily you see me talking about the Japanese aftermath of the US Civil War, in the form of people and surplus equipment from the US that ended up there during the Boshin War.

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I'm starting from one of those two, and seeing how much I can reconstruct, because there really weren't that many Japanese people outside of Japan in the timespan of the US Civil War (1861-1865), so I think it should be possible to narrow down their precise names and identities.

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was the .ae ccTLD a nod to Tim Berners-Lee/registries that issue top level country code domains? Is that why Tel Aviv is a place I commonly find OTC/Bitcoin related companies and DAC/dev protocols and operations based? Why UAE/Israel have opened commerce bilaterally in 2020?

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How come the other person always gets their way?

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