Tom Nicholas Profile picture
Sep 5, 2020 20 tweets 8 min read Read on X
My friend Leo Buizza (who is too smart to be on twitter) took a closer look at @BCG 's new net-zero emissions pledge.

Is it #greenwashing? Let's find out... 🧵

leosthreeminuteblog.home.blog/2020/09/04/so-…
For starters, credit to @BCG for making the pledge at all – it’s already more than @McKinsey and @BainAlerts have done (two of their main competitors), from what I can tell.
@BCG are talking about net-zero by 2030. That's not bad - well before the IPCC's 2050 date, and therefore in line with keeping to 1.5C of global warming.

But what about the fine print...
Before we go on you need to understand what Scope 1, 2 & 3 emissions are. The Carbon Trust provides a handy explanation:

Scope 1: Direct emissions from owned or controlled sources (for example a factory, or if @BCG own some company cars).

carbontrust.com/resources/brie….
Scope 2: Indirect emissions from the energy use of a company. i.e. of the heating, electricity, that @BCG consume in their rented offices. (If they owned the offices it would be Scope 1).
Scope 3: All other indirect emissions caused by a business.

This can be a large umbrella, including all the flights that consulting projects are known for, or even all of the downstream use of a product (including the burning of fossil fuels extracted by a FF company!) ✈️🛢️
Anyone who knows a management consultant will know that they fly All. The. Time. - so Scope 3 is really important here.

That's why it's interesting that @McKinsey and @BainAlerts have so far only made commitments regarding their scope 1 & 2 emissions... 👎
@BCG have lovely-looking graph showing the projection of their (apparently rapidly) decreasing emissions. Image
However there are 3 ways in which this is misleading...

1) What is up with the x-axis?? It moves from 2018-2019, then suddenly jumps to 2025, then 2030 🧐

This has the effect of making the red line of emissions dive sharply, when really it's a slower decline out to 2030. 📉
2) The y-axis is also misleading - we would expect actual tons of CO2, but we're just told it involves emissions per full-time equivalent.

That's odd - it means that @BCG could increase their company emissions by 3x, but hire 3x as many staff, and this metric would be constant.
3) But the real problem here is the size of the negative emissions assumed.

Leo made a clearer version of the graph which shows (in 🔴) how big a fraction negative emissions are of their net-zero pledge Image
In 2030 their emissions are still 2/3rds of what they were in 2018, but they are relying on using Negative Emissions Technologies (NETs) to suck it all out of the air?! 🌬️
As Leo says, trusting this part of the plan requires some pretty heroic assumptions about the effectiveness of reforestation as offsetting, drawdown, as well as the scalability and readiness of NETs.

vice.com/en_uk/article/…
If they really want to be sure that the carbon for which @BCG are responsible gets put underground and stays there, they would need to use long-term carbon removal and storage (which even in the best case would be much more expensive than offsetting)

bgs.ac.uk/discoveringGeo…
Leo gives some suggestions for how @BCG could do better:

1) Start off by publishing the data, and outlining their projections for emissions (leaving aside headcount), so that people can assess how realistic these are.
2) Outline a strategy for more aggressive reductions in Scope 3 emissions, going above and beyond the IPCC’s recommended 45% cut.
3) Set up a team to pick the most effective efforts around developing long-term geological storage options, and evaluate @BCG 's best strategy for involvement (throw cash at it, pro-bono consulting, invest in early-stage companies, pushing for smarter policy etc.)
I'll also add that you would think that with all their supposed talent working for them, you would think these consultancy companies could come up with a way to work without flying so much in the first place! 🧠✈️
So overall, I'm not sure this is a pass - there's a fair amount of #greenwashing in this plan.

Thanks again to Leo for looking into this. The End.
(@BusinessGreen I know you covered this but you didn't really point out just how much of the pledge was negative emissions)

businessgreen.com/news/4019570/b…

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More from @TEGNicholas

Jan 5, 2021
We published a new paper in Energy Policy:

“Re-examining the role of nuclear fusion in a renewables-based energy mix”

We attempt to clarify what a realistic fusion reactor could, and could not, likely offer the world.

1/n

sciencedirect.com/science/articl…
We wrote this paper for:

a) Policy people / the public, who want to know what fusion is and isn’t,

b) The fusion community, as we together need to better understand the context and likely competitive landscape our work will face.

2/
Despite a recent surge in activity, the timeline for fusion development is slow. And even once demonstrated, the tech doesn't lend itself well to a rapid rollout.

Fusion can likely only be significant after the world is already renewables-dominated.

3/

royalsocietypublishing.org/doi/full/10.10…
Read 13 tweets
Sep 30, 2020
People are still tweeting about the NYT's piece on the SPARC nuclear #fusionenergy release, so as a fusion PhD student I'm going to explain what it is and isn't...

🧵

nytimes.com/2020/09/29/cli…
Commonwealth Fusion Systems is a spin-out from MIT Plasma Science and Fusion Centre. A few years ago they described an innovative design for a power plant called ARC, which proposed using recent advances in high-temperature superconducting (HTS) magnets to shrink the machine.
This works because the fusion plasma is held by the strong magnetic field, as each charged particle corkscrews tightly around the field lines.

The higher the field (denoted B), the tighter the corkscrew, effectively shrinking the whole plasma.
Read 22 tweets
Sep 29, 2020
Regardless of your opinion on Carbon Offsets, companies will want to use them.

So activists pressuring companies need to understand the different types of offsets!

My friend @EliMLarson was part of a team that created a set of Offsetting Principles to help you understand.
As he (and the other academics at Oxford who worked on this) argues then only offsets with certain, very stringent conditions can be relied upon to reduce future warming.

Very few currently available offsets are geologically-permanent, for example.

But offsets which do meet those standards are plausible, and some companies will definitely try to buy lots of them.

(see @BCG 's recent net-zero pledge - a company rich enough to buy the real deal assuming they will buy A LOT of offsets)

Read 11 tweets
Sep 1, 2020
Proud to be in London today marching with @ScientistsX, alongside @XRlawyers.

#ActNow Image
The Climate and Ecological Emergency Bill is a piece of work to be proud of, whose championing shows that @XRebellionUK can continue making a difference.

It's also encouraging to see climate experts involved from the start in the creation of the bill.
Read 4 tweets
Jul 14, 2020
We are in a climate crisis, but must not give in to doomism.

@GalenHall4, @ColleenBSchmid1 and I explain why environmental doomism is never the right philosophy.

opendemocracy.net/en/oureconomy/…

1/🧵
In particular we look at the most pernicious example of doomism within a movement @GalenHall4 and I are members of: the damaging effect of Jem Bendell’s @deepadaptation agenda on @ExtinctionR .

2/
The original Deep Adaptation paper has been downloaded 100’s of thousands of times, and Bendell contributed a chapter to the Extinction Rebellion handbook, and has spoken for the movement many other times.



3/
Read 44 tweets
Mar 25, 2020
It's 60 years to the day since Charles Keeling's paper showing that atmospheric CO2 concentrations were increasing was published: "The Concentration and Isotopic Abundances of Carbon Dioxide in the Atmosphere".

The start of the famous @Keeling_curve.

tandfonline.com/doi/abs/10.340… Image
The abstract is so understated for the gravity of the implications.

"A systematic variation with season and latitude in the concentration and isotopic abundance of atmospheric carbon dioxide has been found in the northern hemisphere. ... "
"In Antarctica, however, a small but persistent increase in concentration has been found. Possible causes for these variations are discussed."
Read 8 tweets

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