Gernot Wagner
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gwagner.com
Gernot Wagner
@gwagner.com

Climate economist, Columbia
https://gwagner.com
It’s pronounced juggernaut without the jug.

Gernot Wagner is an Austro-American climate economist at Columbia Business School. He holds an AB and a PhD in political economy and government from Harvard University, as well as an MA in economics from Stanford University. A founding co-director of Harvard's Solar Geoengineering Research Program (2017–2019) he joined the faculty of New York University in 2019, moving to Columbia University in 2022. Wagner writes a monthly column for Project Syndicate, and is the co-author, with Martin L. Weitzman, of Climate Shock, a Top 15 Financial Times-McKinsey Business Book of the Year 2015. He won the "Austrian of the Year" award in 2022, awarded by Austrian daily Die Presse. .. more

Economics 35%
Environmental science 29%

The nutty bit — other than the full plastic wrap, that is: I walked by this bowl ~8hrs ago. Looks untouched.

Perhaps wrapping perfectly fine apples in an impenetrable layer of petrochemicals is…hear me out: off-putting?! 🍎🍏

Reposted by Aaron Sojourner

Fossil fuel pollution here = NOₓ, SOₓ, and PM₂.₅

And yes, CO₂ is another key fossil fuel pollutant, which heats the planet, which further hurts (elite) athlete performance.

Almost as if we really do need to get off fossil fuels, fast.
Startling new research finds marathon times go up when there's more fossil fuel pollution in the air. Los Angeles Marathon has it worst. Even elite runners suffer. www.nytimes.com/2025/11/01/c...
Take a Deep Breath? How Bad Air Affects Your Marathon Finish Time
www.nytimes.com

🔥
Startling new research finds marathon times go up when there's more fossil fuel pollution in the air. Los Angeles Marathon has it worst. Even elite runners suffer. www.nytimes.com/2025/11/01/c...
Take a Deep Breath? How Bad Air Affects Your Marathon Finish Time
www.nytimes.com
Buried inside the deal to reopen government is a provision that would give Senators private right of action to sue for millions in damages over their phone records being analyzed by Jack Smith's team.
news.bloomberglaw.com/us-law-week/...
Shutdown Deal Would Let Senators Sue Over Jack Smith Searches
Senators whose phone records were sought by Special Counsel Jack Smith would gain authority to sue for millions in damages under a provision buried in the Senate-advanced deal to reopen the government...
news.bloomberglaw.com

That race will continue for the rest of most of our lifetimes.

And yeah, that heat pump CoP hovering around 3 or 4 without even trying is a key part of the story.

The fact that some now achieve CoPs > 7 is…wow.

bsky.app/profile/volt...
Holy shit. This company claims it has developed an air-source heat pump with a COP of *7* (3-5 is considered good). For you non-nerds, that basically means it produces 7 units of heat for every unit of electricity it consumes. How are they doing it? You're not gonna like this answer, but: it's AI.
Fairland COP7 R290 ATW HeatPump - The Future of AI HeatPump
/PRNewswire/ -- As gentle heat wraps around you, you walk barefoot to bathroom and enjoy an instant hot shower—no waiting, no cold shock. Every corner indoors...
www.prnewswire.co.uk

Climate change is getting worse a lot faster than most realize.

Climate tech is getting better a lot faster than most appreciate.¹

¹ gwagner.com/scenarios

Happy COP week!

Not the heat pump Coefficient of Performance, but the Conference of the Parties, UN climate talks, "Paris+10."

And yeah, like so much else, it's all about setting expectations.

Ominous picture for an ominous moment
Agree.

Sen Hassan, asked what will happen if Republicans don't carry out the deal, "Well, shame on them."

This is not what people were mobilizing for on Oct 18.
My family has been without half our income for 40 days. It has been.. very hard.

We are willing to feel that pain so people can have health care next year, or to undo these illegal recissions.

We are not willing to have been put through this for NOTHING.

The purpose is to raise the marginal private cost to be closer to the marginal social cost of each tonne of CO₂ emitted. Econ 101.

...nach Wien :)

Putting the nerd into train nerd 😎

www.traintrackr.io/refer/bfXbPW...

This you?

Yellin' about a smallish carbon fee?
bsky.app/profile/smok...
Maybe the proceeds could be used for direct air capture or something... the fact is ppl need to fly

None of this is banning flights for anyone.

But let's not pretend it's OK to do so while using the atmosphere as a free sewer.

Reposted by Gernot Wagner

Maybe the proceeds could be used for direct air capture or something... the fact is ppl need to fly

Reposted by Gernot Wagner

Holy shit. This company claims it has developed an air-source heat pump with a COP of *7* (3-5 is considered good). For you non-nerds, that basically means it produces 7 units of heat for every unit of electricity it consumes. How are they doing it? You're not gonna like this answer, but: it's AI.
Fairland COP7 R290 ATW HeatPump - The Future of AI HeatPump
/PRNewswire/ -- As gentle heat wraps around you, you walk barefoot to bathroom and enjoy an instant hot shower—no waiting, no cold shock. Every corner indoors...
www.prnewswire.co.uk
"Far from a peak, China's gasoline demand is estimated to have fallen 9% in October on the year to 12.5 million tons, with average daily use roughly flat with September..."

China's oil demand is entering structural decline.
EVs put an end to China's usual holiday surge in gasoline use
Tianyu Jiang took a 2,000-km (1,200-mile) road trip this month during China's national holiday week, driving in his electric vehicle from the southwestern Sichuan basin to Beijing for the first time.
www.reuters.com

[insert "why not both?" gif here]

Can confirm: technology and design have both improved in past 25 years.

Though we did end up with 2 gadgets instead of 1, to achieve the same thing: @npr.org + alarm.

All technically linked to EU ETS, so 1 EUA for each tonne of CO₂ emitted.

About as rational as these things get.

One person's "stealth tax" is another's bare minimum to start making sure flyers stop using the atmosphere as a free toilet
Passengers on long-haul flights could pay an extra £21 as the government agrees to align with Brussels on carbon emissions ⬇️
Holidaymakers face stealth tax on flights under EU carbon deal
www.thetimes.com

Reposted by Gernot Wagner

Passengers on long-haul flights could pay an extra £21 as the government agrees to align with Brussels on carbon emissions ⬇️
Holidaymakers face stealth tax on flights under EU carbon deal
www.thetimes.com

25-year-old radio alarm clock this morning.

Feels like it's time for a replacement.
“I want you to understand what it is like to live in Chicago during this time.”

aphyr.com/posts/397-i-...

Ok, fine. I wasn't quite.

Am I doing this right?