Ketan Joshi
@ketanjoshi.co
56K followers 3.4K following 21K posts
Hey, I'm a climate and energy writer / data analyst who focuses on corporate + govt accountability Creator + curator of the Greensky feed: https://ketanjoshi.co/greensky/ Based in Oslo but write about US, Europe, Aus too - [email protected]
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ketanjoshi.co
Inspired by this: please find my official apology regarding the cause of the 2025 LA wildfires.

I will try to do better in the future

#learning
Reposted by Ketan Joshi
climateanalytics.org
Our CEO @billhare.bsky.social called the new data “alarming and worrying.”

“Let there be no mistake, this is a very clear warning sign that the world is heading into an extremely dangerous state – and this is driven by the continued expansion of fossil fuel development, globally.”
UN agency says C02 levels hit record high last year, causing more extreme weather
The United Nations weather agency reports that carbon dioxide levels in the atmosphere reached record highs last year, intensifying climate change and extreme weather.
apnews.com
Reposted by Ketan Joshi
doctorvive.bsky.social
I don't think fossil fascists are going to bother with solar geoengineering, actually, since they genuinely don't give a fuck that they're destroying the conditions for human survival. But I can totally see some techno-optimist liberal regime putting it on the table—I mean they're already doing it!
Reposted by Ketan Joshi
dpcarrington.bsky.social
Record leap in CO2 fuels fears of accelerating global heating

- CO2 in the air hit new high last year, with scientists concerned natural land and ocean carbon sinks are weakening
@wmo-global.bsky.social

#climatecrisis
Story by me
www.theguardian.com/environment/...
Record leap in CO2 fuels fears of accelerating global heating
CO2 in air hit new high last year, with scientists concerned natural land and ocean carbon sinks are weakening
www.theguardian.com
Reposted by Ketan Joshi
Reposted by Ketan Joshi
kostyack.bsky.social
Last year Wood MacKenzie said that "decisive action" is needed to achieve net zero emissions by 2050. Today it's promoting its "AI-powered analysis" to help the oil industry "unlock hundreds of billions of barrels of additional supply." It even has a catchy marketing slogan: "Every Last Drop."
www.woodmac.com
ketanjoshi.co
It is SO funny to me
Reposted by Ketan Joshi
philipoconnor.bsky.social
Aftonbladet's interview with Greta Thunberg is now available in English - it raises many serious questions, not least about the Swedish govt. effectively abandoning its citizens to torture because it doesn't agree with their politics. A thundering disgrace.
www.aftonbladet.se/nyheter/a/25...
Greta Thunberg: “They kicked me every time the flag touched my face”
– Greta Thunberg on her days in Israeli captivity Beating, kicking, and threats of being gassed in cages. Greta Thunberg and several others from the flotilla ar
www.aftonbladet.se
Reposted by Ketan Joshi
lisarostlund.bsky.social
We’ve met with Greta Thunberg and others in the flotilla. They describe hours-long scenes of torture and sexual harassment in Israeli captivity. Experts conclude that they have been subjected to serious crimes – Sweden’s foreign minister believes they have themselves to blame.

tinyurl.se/crR
Greta Thunberg: “They kicked me every time the flag touched my face”
– Greta Thunberg on her days in Israeli captivity Beating, kicking, and threats of being gassed in cages. Greta Thunberg and several others from the flotilla ar
www.aftonbladet.se
ketanjoshi.co
Braindead - sense check something for me, friends

What's the best way to calculate the greenhouse gas emissions in a trillion barrels of oil when burned?

0.43 x 1 trillion?

Is that 4.3 e^11 tonnes = 430 gigatonnes?

man I should know this lol

www.epa.gov/energy/green...
Barrels of oil consumed
Carbon dioxide emissions per barrel of crude oil are determined by multiplying heat content times the carbon coefficient times the fraction oxidized times the ratio of the molecular weight of carbon dioxide to that of carbon (44/12).

The average heat content of crude oil is 5.80 mmbtu per barrel (EPA 2024). The average carbon coefficient of crude oil is 20.31 MMT C/QBtu (EPA 2024). The fraction oxidized is assumed to be 100 percent (IPCC 2006).

Calculation
Note: Due to rounding, performing the calculations given in the equations below may not return the exact results shown.

5.80 mmbtu/barrel × 20.31 kg C/mmbtu × 44 kg CO2/12 kg C × 1 metric ton/1,000 kg = 0.43 metric tons CO2/barrel

Sources
EPA (2023). 2024 Annex 2 (pdf) (1.94 MB, April 11, 2024, 430R24004) , Table A-20 "C Content Coefficients by Year (MMT C/QBtu),” pg. A-51, U.S. Environmental Protection Agency, Washington, DC. U.S. EPA #430-R-24-004
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories. Volume 2 (Energy). Intergovernmental Panel on Climate Change, Geneva, Switzerland. 1E+12			
1E+12	0.43	4.3E+11	tonnes
		430000000	kt
1,000,000,000,000,000,000		430000	mt
		430	gigatonnes
ketanjoshi.co
ketanjoshi.co
In the US, absolutely out-of-control demand growth was the main factor in rising coal and gas climate harm

Turns out repeatedly saying "all the old demand forecasts were wrong!!!" didn't stop the new demand forecasts being right

ember-energy.org/latest-insig...
a chart showing more solar didn't stop fossil fuel growth
ketanjoshi.co
It really depends whether you like to see technology exist for its own sake, or if you think technology should serve the goals of directly bettering the lives of people when it's deployed

I think @billmckibben.bsky.social makes it very, very clear that solar ought to serve human needs
ketanjoshi.co
I'm sure @billmckibben.bsky.social has his own answer but if you care about solar for its air-pollution-avoiding, household-bill-reducing, fossil-fuel-eliminating benefits, then no

Uncontrolled demand growth alongside rising solar means fossil fuels stick around: meaning high bills and dirty air...
Alex Trembath reposted
Russ Greene
@GreenPlusAnE
Shouldn’t new electricity demand be great news for solar optimists?
Quote
Alex Trembath
@atrembath
·
16h
I’m beginning to suspect environmentalism and abundance may be at odds.
12:30 AM · Oct 15, 2025
·
919
 Views
ketanjoshi.co
It's good to just rename things occasionally so we don't forget what they really are
geordi pointing meme - he says no to "data centres" and yes to "computer buildings"
Reposted by Ketan Joshi
doctorvive.bsky.social
The thing about solar geoengineering is that once you start you cannot stop *ever* unless somehow you have already removed all the multi-billions of tons of carbon emitted since the day you started.

If you stop at the higher CO2 concentration you get virtually instantaneous catastrophic heating.
thierryaaron.bsky.social
"If geoengineering works well initially & you see this temperature drop, the tempempation to keep going & extracting fossil fuels will be greater than ever, because it will seem that you have a technologically that can cut off the link between temperature rises & fossil fuel combustion."
Overshoot & Climate Breakdown - Wim Carton & Andreas Malm | #39
YouTube video by Jesse Damiani
youtu.be
Reposted by Ketan Joshi
thierryaaron.bsky.social
"If geoengineering works well initially & you see this temperature drop, the tempempation to keep going & extracting fossil fuels will be greater than ever, because it will seem that you have a technologically that can cut off the link between temperature rises & fossil fuel combustion."
Overshoot & Climate Breakdown - Wim Carton & Andreas Malm | #39
YouTube video by Jesse Damiani
youtu.be
Reposted by Ketan Joshi
Reposted by Ketan Joshi
stopcambo.bsky.social
BREAKING🚨: @Equinor has resubmitted its application to open the biggest undeveloped oil field in the UK - Rosebank.

In the next weeks, the UK gov will decide to reject or approve this disaster project.

Equinor hasn’t given up, and neither will we. We’re stepping things up.
Reposted by Ketan Joshi
lukeplunkett.com
my taxes are paying for this, unreal
Reposted by Ketan Joshi
lukeplunkett.com
kids teacher just sent this home as part of an assignment he's doing and i want to smash every computer at the school
ketanjoshi.co
The entire 2020s push for vibes-based nuclear advocacy, built largely around the aesthetic of science rather than any actual solid scientific basis, has not really played out positively for the industry.

But it *has* been a positive for techno-fascist US forces...

@roycerk2.bsky.social -->>
Isabelle Boemeke Isn’t Trying to Spread Conspiracy Theories in her New Pro-Nuclear Book, But She Is
Pro-nuclear influencer Isabelle Boemeke’s new book, Rad Future, indulges in conspiracy theories, unsourced claims, and personal attacks against the industry’s critics.
drilled.media
ketanjoshi.co
Oh no, no way with actual policies. At some point I want to properly load up state-level emissions data in the same way I have for country-level and just try and host it all publicly so everyone can play from home too.....
ketanjoshi.co
Nice work @billmckibben.bsky.social - worth noting that @edzitron.com is on Ghost, not Substack
ketanjoshi.co
I'm sure someone else has come up with it too but for this one yes I did :)