"The world will run on sun and wind 40 years from now" Not exactly a surprise to see these words next to @billmckibben.bsky.social's name. The source? OPEC Fund Quarterly publications.opecfund.org/OFQ-2026-2/46/

Science is inherently self-correcting, but it takes someone doing the correcting.

Define "unwitting" www.theguardian.com/us-news/ng-i...

Due process is ending after 250 years. The demise of the long-running pillar of democracy made our critic think of another thing: maybe the government should just kill everybody they don't like immediately and get it over with.

Couldn't agree more. The most in insidious denial lingo has long moved from outright climate change denial to arguments over 'critical' minerals, China(!), and the like. My own attempt on that front: gwagner.com/nature-fossilflation

We need to do everything possible to both avoid the unmanageable and manage the unavoidable

Really well done @bloomberg.com take on "Floodproofing Cities" Yes, we need to adapt to what's in store. No, that's not an excuse not to cut CO₂. Quite the opposite. youtube.com/watch?v=R341JzbpC5k

That's it. That's the messaging. Also happens to be good policy to boot.

Really hot out today, so I could have sworn this one was a solar spill, or perhaps a heat pump implosion. Alas, just another gas spill. No fun.

UK's infrastructure isn't ready. Nobody's is.

Explains quite a lot

Have a window AC, want to get paid this summer during demand spikes? Interesting concept. Also, a sign of how cheap batteries are now: everyelectric.com

I love that I have these two magazines in my office: German Manager Magazin calling their energy mjnister "The Fossil," and Austrian @profil.at calling out wind opponents with tinfoil hats. Sadly, both are a too real in the US, too.

Remove tag "Working Paper," replace with journal name. Always fun, especially when the paper marks a bit of a rite of passage: First time I got to 'correct' a prior conclusion. Follow along, as I try to unpack the paper, in 3 easy steps... 🧵🪡 ¹/ₙ

New paper alert! "Beliefs, evidence, and climate action", with @markfreman.bsky.social, @bengroom.bsky.social and @gwagner.com, has been accepted for publication in Energy Economics.

Open Streets 🏑🏒😎 💚NYC

the financial times lauds vienna's most popular social housing as something to emulate you love to see it, folks www.ft.com/content/467f...

California clean energy advocates: thank you. 75% of you may now shift your efforts to transportation, ag and industrial, resilience, or electricity elsewhere.

Hi, climate guy. Climate is all I've ever done, really. The most popular page on my site these days? My Privacy & AI policy: gwagner.com/ai It begins: "No ads, no cookies¹, no Google Analytics, no LinkedIn Insights, no Meta Pixel, no Pinterest Tag, no Substack spam. No tracking of any kind.²"

The fun bit: 500 of 800 @columbiabusiness.bsky.social MBAs each year take Business and Climate Change¹ youtube.com/shorts/Fb3LYaFZgw8 ¹ gwagner.com/bcc

In case you want to know why the fossil industry is so adamant about "critical" minerals, and the importance of not "rushing" into batteries because, look, that lithium mine really needs to meet all ethic standards the fossil industry itself never has...

What cheap, stable, independent energy actually looks like. Image from...Aleppo, Syria.

Mission accomplished: roof insulation value R80, up from R20 and a decades-old leaky affair. 5 years in the making, feels good (and rather comfy¹) gwagner.com/curbed-coop

Exxon = commodities, which will always fluctuate because of geopolitical vagaries Fervo = technology, can only get better and cheaper over time

Geothermal has liftoff Not quite the largest clean tech IPO ever, but (I believe) the largest public offering raise *ever*. business.columbia.edu/insights/cli...

Solar geoengineering is a difficult subject to put in the right light for all sorts of reasons. That made 3 recent experiences all the more heartening: ⅓ 🎞️ Screening of Plan C for Civilization at @columbiauniversity.bsky.social + panel with @vfmcneill.bsky.social gwagner.com/columbia-plan-c

Essentials next to our front door. 😎 The traintrackr maps are train nerd heaven www.traintrackr.io/refer/bfXbPW...

This is one of the highest-profile battles yet between the US research community and the administration of President Donald Trump go.nature.com/4uCofWP

Trump, Putin, Hanta...lots going on, but here's one of the scarier headlines you'll read this weekend:

Staircase ≻ Ladder

Hungary’s parliament sings “Ode to Joy” — the anthem of Europe — after Péter Magyar is sworn in as prime minister. Hungary is once again a proud member of the European Union.

Fun, when @economist.com picks up on a trend you've been living for 2 decades. The one part of the trend not captured here: cities cut carbon, dramatically so www.economist.com/united-state...

Funny how that works

Yup. "EV sales in Latin America jumped by 48% in 2025" That's Latin America, home to Brazil, where biofuels have long been all the rage.

I just want to add, since this is breaking containment, that this can't be made right. these people, each one a whole universe, are gone. there can only be justice for the perpetrators; public remorse & restitution; & reform to ensure future aid systems are more just and less prone to imperial whims

"It's clear that EVs are the more efficient, better, and increasingly cheaper technology. And technologies, by their very nature, can only get even better and cheaper over time." Me via ABC News: gwagner.com/abc-evs

30 GW of onshore wind held up by the usual suspects, who then also claim they care about lower utility bills

Sassy graffiti in the Castro.

What was then Royal Dutch Shell detailed it in 1998: a scenario, whereby oil & gas go the way of tobacco, shunned from polite society within 25 years. Now their former headquarters stand in a city that has banned fossil fuel and meat ads. Bravo, Amsterdam! www.nytimes.com/2026/05/01/c...

Brilliant explanation for marginal vs average

Swap Democrats for Germany and that's basically the political news since forever: Others have agency and otherwise act rationally, while apparently nobody expects Trump (or, by extension, by now, most Republicans in power) to do so.

Dark red = 5x more likely due to climate change

There goes my one trik

Diesmal auf Deutsch: @artefr.bsky.social Agree to Disagree Thema: Geoengineering gwagner.com/arte-agree

I find that people often miss the leading role that oil price shocks have had in the global #energytransition - especially at the beginning. The 70's oil crises and a dislike of nuclear drove Danes to wind turbines, which is where it all began.

No New Yorker goes to Times Square. Sometimes it's fun to bike through it, though youtu.be/HAzUK4DtzSY

No climate policy — EV subsidies, CAFE standards, etc. — would have ever done as much to push the world off oil, as this war. The transition would have just been a lot slower, better planned, less disruptive.

That's a wrap on Climate Risk. The class, that is. The risks, sadly, will only get worse in all of our lifetimes. 6 weeks, 4 guests, 23 teams of 3-5 students each, diving into various data sets going all out with the help of Claude Code et al. Syllabus, readings, etc: gwagner.com/cbs-climate-risk

This video taken strictly for insurance purposes youtu.be/bDSI5d-SJuI