"Carbon pricing is key to reach net zero GHG emissions - there is no other way to reach that target, the price needs to remain on a high level"

Okay @PIK_Climate, but do you suggest imposing it without democratic consent?

nature.com/articles/s4146…

PDF: nature.com/articles/s4146…
It's a great insight you provide but you shy away from suggesting pathways to enable a true mandate. Instead, CO2 "polluter pay" doctrines have NOT worked because they favour polluter INCUMBENTS and not innovation. So now think "Porter Model". Yes?
Second, they have kept carbon at a low price to resist building price inflation feared by economists and politicians who speak a good game but are terrified of a candid discussion with their voter base. So it's being farmed out to oligarchs who will find a way to profit anyhow
And the populace will get charged anyhow but without democratic mandate

Consider: $131tn is needed for #ClimateAction energy transformation. Total Global wealth is only $330tn

...So are we to do that without democratic transparency @JStrefler @GunnarLuderer @RobertPietzcker? 🧐

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More from @Manamind1

23 Apr
CCS is a fossil fuel enabler. @jshieber's piece lays bare the difficulties innovators such as @CharmIndustrial (400 tonnes CO2) & @CarbonCure face.

We need an ETS that allows a transfer of cash to innovators. An ETS that doesn't pay polluters.
techcrunch.com/2021/04/22/as-…
Per CarbonCure's website 42,552 t CO2 saved in 603,629 truckloads. A truck is 6m^3.

That's 70kg CO2/truck. So, 11.6kg/m^3 concrete.

1 cubic meter concrete is typicality 350kg cement

Hence, @CarbonCure sequesters ~33kg CO2 per tonne cement

1 tonne of cement is 824 kg CO2
CarbonCure is MARGINAL & a GHG-enabler.

It promotes a false vista of solving Cement's awful CO2 problem when the net effect is still ~800 kg CO2/t OUTPUT 🧐

@elonmusk @PeterDiamandis did you ever consider what took me 5 mins to discern? Or was your award to "cosy" with Bill? 🤔
Read 4 tweets
21 Apr
Great @fionaharvey👍 but Mark Carney has no credibility for me after Brookfield & his TSVCM report calling-in buddy Bill Gates, for MC to then join @stripe's board that invested in Gate's @CarbonCure, now rewarded by @elonmusk. I applaud @DonnachadhMc 👏
theguardian.com/business/2021/…
See below for the @DonnachadhMc piece.

Follow the breadcrumbs👍 There's an unelected plutocracy forming @fionaharvey, that's going to control #ClimateAction cash. DAC is cloud-cuckooland unless huge OPEX is funded from consumers who have no constituency
independent.co.uk/climate-change…
See below. Bill Gates' dubious tech that enables Portland cement rather than abating it, gets rewarded by those who don't read tech reports to understand that anything other than marginal usage, introducing CO2 into concrete makes chalk & is DANGEROUS.
Read 4 tweets
21 Apr
Hi @EricMasanet @ZhiCaoIE. See below. EMCs are zero CO2 & 10% OPCs energy need, using HEBM

95C at 55% OPC replacement using volcanics, TC 335kg/m^3, testing BASF

Learn about concrete, you'll know that's stellar. Otherwise, you really shouldn't be writing a @ClimateWorks report
Either you know nothing about concrete & should be nowhere near writing a report, or you do know about concrete & missed-out EMCs deliberately (after all, there's a picture at p.2)

So what's the truth @ClimateWorks? Incompetence or withering bias? It's a huge miss @JesseJenkins
The results I've set out are on the Wiki page ("Overview" final bullet) from which you took the picture of the EMC @EricMasanet @ZhiCaoIE 🧐

@JesseJenkins I discussed them with a concrete supplier last month to educate myself. He said those results are 🚀
en.wikipedia.org/wiki/Energetic…
Read 4 tweets
19 Apr
"The winner was CarbonCure, which showed it can inject CO2 into water used to wash out cement trucks, for a mix that makes stronger concrete, according to XPRIZE."

@elonmusk @PeterDiamandis can you send a link that supports this claim. I can't find it 🙏

phys.org/news/2021-04-w… Image
I think I got it: "The mix design was to achieve 35 MPa at 28 days. The mix was 308 kg cement + 77 kg slag per m^3 concrete". That's 385kg total cementitious incl slag. That's large, yet only 35C? 🤔

And the brown bars seem to contradict your claims? 🧐

doi.org/10.1016/j.cemc… Image
Please be very careful making claims. RAPID carbonation in concrete is hugely controversial as it promotes CHALK. You understand? That means WEAKNESS. Hence your TINY fizzy dosage

...And why your paper I cited uses SLAG to BOOST strength gain. Yes? 🧐

FFS please up your game 👍
Read 4 tweets
9 Apr
@robbie_andrew @CharlieJGardner @COP26 @HaahrMarianne @CHerweijer Yeah. That's why I tapped you. The 65% is per the 2011 doc p56: "default CaO content in clinker of 65% is recommended, corresponding to [0.51] CO2/clinker".

I get it. But I can't get to 0.4 stated by the UN, but it will set a benchmark. Very worrying if it's a howler. Seriously
@robbie_andrew @CharlieJGardner @COP26 @HaahrMarianne @CHerweijer @SvenTeske
Dear Dr. Teske. Hopefully the thread above will make sense. From where does your report's p.59 "Sectoral pathways to net zero emissions" derive the 0.4 CO2/clinker ratio:
"process emissions...are assumed to decline evenly from 0.4 tCO2/t clinker in 2017–25..." 🙏
Read 4 tweets

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