Michael E. Mann

Look Mr @michaelemann.bsky.social

A hockey stick graph.

I bet the powers that be take this one more seriously.

A deadly climate change effect is even worse than feared, study finds Sea level along the world’s coastlines is often much higher than previously assumed, a new study finds.

"A deadly climate change effect is even worse than feared, study finds" by Doyle Rice for @usatoday.com: www.usatoday.com/story/news/n...

AI error or not, Iran school bombing is a permanent stain on America’s soul | Will Bunch A debate on AI in warfare obscures the truth about an Iran school bombing. U.S. humans are to blame for this war crime.

They had names. They had beautiful faces. And they had the same dreams as your kids - crushed when American "precision" bombs slammed into their Minab elementary school, killing 175

Don't blame AI for this. Blame the sick humans who see war as a game

My new column www.inquirer.com/opinion/iran...

0.35C is not defensible. See:
bsky.app/profile/mich...

Via @wacswain.bsky.social
“Royal Society statement on the US Administration’s repeal of the endangerment finding”

Thanks Eric!

And: bsky.app/profile/mich...

Matt, this comparison is informative — it shows the observations along with the spread among the CMIP6 ensemble: bsky.app/profile/mich...

👍🙂

Bob, I already said I’m done debating this with you here.

I don’t follow. Annual emissions are roughly constant at about 38 Gt CO2 which means cumulative emissions are increasing roughly linearly. There are some indications that annual emissions will decline over next few years which would mean a deceleration in cumulative emissions.

I'll have to reach out to Tapio and ask him if there's any followup work by him or others he's aware of.

The Way Donald Trump Talks About Americans Dying Should Enrage You The Way He Talks About Americans Dying Should Enrage You

The Way Donald Trump Talks About Americans Dying Should Enrage You
open.substack.com/pub/thejackh...

oops, sorry, I was looking at the IOP article. I'm very familiar w/ Tapio's @nature.com article. In fact, I discus it at length in #OurFragileMoment (bookshop.org/p/books/our-...). Here's an excerpt:

oops, sorry, I was looking at the IOP article. I'm very familiar w/ Tapio's @nature.com article. In fact, I discus it at length in #OurFragileMoment (bookshop.org/p/books/our-...). Here's an excerpt:

🧵

hadn't seen this one, but I've long been impressed with Tapio's work. I'll read it! Thanks for bringing it to my attention.

Dr. Mann's reference to Dr. Schneider has particular resonance with me (b/c I knew him a bit). He emphasized the need to follow the data; he had long talked about overestimating aerosols & underestimating CO2 impacts but bad actors pretended he had not changed his mind in only 3 yrs (71 to 74).

Bob, the plot is literally what I'm saying. And it speaks for itself. Signing off on this exchange as I don't think further back-and-forth is productive here.

👍🙂 I always appreciate good faith challenges and questioning. It's refreshing!

No disagreement there. In practice, though, the two are nearly equivalent:

No disagreement there. In practice, though, the two are nearly equivalent:

Scientists are trying to solve the mystery of whether global warming is speeding up. A new study says it has the answer | CNN Is the world getting hotter, faster? It’s a big question which has been puzzling and dividing scientists for years. A new paper says it has the answer, and it’s not good news.

"Scientists are trying to solve the mystery of whether global warming is speeding up" via @laurapaddison.bsky.social for @cnn.com. [I'm critical of the study, but we all agree on key point that planet will continue to warm until we stop burning fossil fuels]: www.cnn.com/2026/03/06/c...

From "Our Fragile Moment"

Michael Mann: Yes, we can still stop the worst effects of climate change. Here's why. Opinion: State-of-the-art climate models show warming stops once we stop emitting carbon. That means there's still time to stop the worst impacts of climate change.

Please see this commentary I wrote for @livescience.com that summarizes the current state of knowledge regarding the "zero emissions commitment" (how much warming we expect once emissions decrease to zero). Our best estimate is that the ZEC is very close to 0C:
www.livescience.com/planet-earth...

Michael Mann: Yes, we can still stop the worst effects of climate change. Here's why. Opinion: State-of-the-art climate models show warming stops once we stop emitting carbon. That means there's still time to stop the worst impacts of climate change.

Please see this commentary I wrote for @livescience.com that summarizes the current state of knowledge regarding the "zero emissions commitment" (how much warming we expect once emissions decrease to zero). Our best estimate is that the ZEC is very close to 0C:
www.livescience.com/planet-earth...

It's important that scientists get this stuff--and in particular, the messaging to the public--right. And social media is a primary way that scientists interact w/ each other today. We're going to be in this space, that's simply a fact. Let's use it to communicate knowledge as best we can.

Some comments on John Kennedy (the climate scientist, not the ex-president)'s post (a post with which I largely agree!) 🧵
1. Nobody familiar w/ my views could "everything is consistent with existing model projections". Even Gemini knows my views are far more nuanced:

Once again, there’s promotion of the *idea* that it’s all about seizing oil assets even when there’s not much of a case for it

IMHO it clearly shows observations lie entirely within multimodel ensemble spread, which collectively (see multimodel mean) show no acceleration over past two decades. Rather than debating this further on social media, I'll speak to this further in the peer-reviewed literature. Watch this space.