iiinova — where your digital self keeps evolving

David Ho @davidho.bsky.social · 17h

Citrus juicers as protection

A row of decorative street bollards sits along a paved sidewalk, featuring black posts topped with vivid red trim, white sections adorned with red five-pointed stars, and distinctive white sculpted tops that resemble manual citrus juicers.

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David Ho @davidho.bsky.social · 10/10/2026

Almost died. The motorcyclist apparently thinks red lights don’t apply to him.

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David Ho @davidho.bsky.social · 09/10/2026

@annemiekstegehuis.bsky.social researches climate change, land-atmosphere interactions, and the global carbon cycle at @normalesup.bsky.social. Her work explores carbon transport from coastal mangroves to the ocean using observations and land surface modeling. She's a former professional cyclist.

A black-and-white close-up portrait of a woman smiling warmly at the camera. She has light brown shoulder-length hair, soft smile lines around her eyes and mouth, and is wearing dangle earrings along with a dark, cowl-neck top. The background shows a shallow-depth-of-field outdoor setting with blurred buildings and foliage along a pedestrian priority road.

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David Ho @davidho.bsky.social · 08/10/2026

These grapes legitimately taste like cotton candy and are so weird.

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David Ho @davidho.bsky.social · 06/10/2026

No. A few students in the US protested. I was on the Columbia campus and I saw the camp. Most of the students just went about their business. Here in France, it’s all the school and many more students.

An outdoor view on the Columbia University campus under an overcast sky features a lawn filled with dozens of green, orange, and blue camping tents set up during a student encampment. Small Palestinian flags line the hedges bordering the grass, while a tall, bare tree with sparse reddish leaves stands near the center foreground. In the background, Low Memorial Library with its distinct dome and classic columns looms over the plaza, alongside surrounding brick campus buildings. On the right side, individuals stand or sit along stone ledges near metal barricades and stacked materials near the paved walkway.

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David Ho @davidho.bsky.social · 06/10/2026

It’s a quintessential French experience when your institution is blockaded by protesting students. This is precisely what American students should have done when their institutions began capitulating to the Trump regime.

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David Ho @davidho.bsky.social · 05/10/2026

Noble Laureate Me 🤝 www.nytimes.com/2026/10/05/s...

21. Why do we sleep?

Katalin Kariko, biochemist, University of Pennsylvania

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David Ho @davidho.bsky.social · 05/10/2026

Most people might be surprised to learn that global ocean biogeochemical models don’t agree on the answer. 🌊 www.nytimes.com/2026/10/05/s...

26. Will climate change increase or reduce the oceans biological productivity?

Daniel Sigman, geoscientist, Princeton University

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David Ho @davidho.bsky.social · 05/10/2026

That time when I drove by some giant pumpkins and one got in the backseat.

A roadside pumpkin stand displays rows of large orange pumpkins on wooden benches covered with straw, with a handwritten “MARKET” sign across the weathered shelter; several people browse the pumpkins, and a white building, green lawn, trees, and open fields are visible in the background under a partly cloudy sky.

A pumpkin taking up the entire backseat of a car

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David Ho @davidho.bsky.social · 03/10/2026

Things you learn in an elevator: In Switzerland, it is illegal to own a single guinea pig because these animals need social interaction.

An elevator screen with a black frame displays trivia in French about guinea pig ownership. The blue screen shows a clock in the top-left corner set to 13:52 and a date of 03/10/2026. Next to this is French text that reads "En Suisse, il est illégal de posséder un seul cochon d'Inde car ces animaux ont besoin d'interaction sociale." (which translates to: "In Switzerland, it is illegal to own a single guinea pig because these animals need social interaction."). Below the time is a large blue panel with white text, "RC," which means "Rez-de-Chaussée" or ground floor, with a downward-pointing arrow and a small circle with a line through it. An illustration below the French text depicts three reddish-brown, white, and black guinea pigs grouped together over a bowl against an orange background, with a dark branch with leaves on the right.

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David Ho @davidho.bsky.social · 03/10/2026

The internet is so weird sometimes.

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David Ho @davidho.bsky.social · 02/10/2026

Oh retractionwatch.com/2026/10/02/p...

David Ho, a climate scientist at the University of Hawaii, responded to our request for comment on the paper by saying he was not interested in reading it. “I’m sorry, but I’d rather keep my brain cells,” he said.

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David Ho @davidho.bsky.social · 02/10/2026

One of the fish gave birth to 30+ fry and now I’m calling my colleague “fish baby daddy”.

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David Ho @davidho.bsky.social · 01/10/2026

@bopplaurent.bsky.social’s aquarium looks…unclear. Help!

A cube-shaped glass aquarium filled with dark, murky brown water sits on a light-colored wooden desk next to a sheet of paper, stationery, and a small yellow food container. Inside the dark water, dense green aquatic plants are visible near the upper right corner, with a sleek black LED light fixture mounted along the top edge of the rimless tank.

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David Ho @davidho.bsky.social · 01/10/2026

I'll meet you in 12 months on the West Ham Corporation double-decker electric tram to Greengate St.

A vintage maroon and cream double-decker electric tram, numbered 102 with a destination sign for Greengate Street, sits on display inside a spacious museum hall with a glass ceiling and Victorian architectural pillars. A spiral staircase leads to its open-air top deck, while a vintage sign reading "General Buses Stop Here" and another historic vehicle are visible on the left alongside informative display boards in the background.

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David Ho @davidho.bsky.social · 30/09/2026

Yes, cute enough for me to want to document it too. 😆

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David Ho @davidho.bsky.social · 30/09/2026

I don’t know if you played with them. They’re very flexible.

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David Ho @davidho.bsky.social · 28/09/2026

@ericacioffi.bsky.social is an oceanographer and biogeochemical scientist at @normalesup.bsky.social. Her research focuses on the impacts of climate change on marine ecosystems and on the use of climate models to investigate Eastern Boundary Upwelling Systems.

A woman with curly hair smiles warmly at the camera, wearing glasses and large hoop earrings. The background is blurred, featuring greenery and soft light, creating a serene atmosphere. The image is in black and white.

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David Ho @davidho.bsky.social · 27/09/2026

I guess none of what I said about attribution, mitigation, or adaptation was interesting enough so I need up being quoted for something that any auntie could have said. 😩

David Ho, a professor of oceanography at the University of Hawaii at Manoa, was at home in Honolulu when Lala hit. His neighborhood flooded, and he was one of 200,000 electricity customers across the state who lost power. More than 200 homes and an estimated $67 million worth of public infrastructure were damaged, according to
*he Hawaii Emergency Management Agency.
"We have a lot of houses that were built before the building codes were modernized, Ho told me. "So once in a while, you have roofs that just fly away."

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David Ho @davidho.bsky.social · 27/09/2026

There was an article by @jtemple.bsky.social about AMOC a few years ago where I thought the energy comparison was very well done. www.technologyreview.com/2021/12/14/1...

The system carries warm, shallow, salty water northward, transporting about 1.2 million gigawatts of heat energy ross RAPID's array of moorings at any moment. That's equivalent to about 160 times the energy capacity of the entire world's electricity system. The currents, which heat up the surrounding air as they travel northward, are a major factor (though not the only one) in why Western Europe is warmer than eastern Canada even though they lie at roughly the same latitude.

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David Ho @davidho.bsky.social · 27/09/2026

What it means to be a naturalist in the 1800s. 🫠 "Citizen Milbert and Citizen Le Brun began drawing the porpoise that had been caught the day before. After that, Citizen Péron worked on it to make anatomical observations [...] Afterwards it was shared with the crew for lunch [...]"

« Le citoyen Milbert, le citoyen Le Brun ont commencé à dessiner le marsouin que l'on avait pris la veille. Après c'est le citoyen Péron qui l'a travaillé pour faire les observations anatomiques [...] Après on l'a partagé à l'équipage pour midi [...] »
"Citizen Milbert and Citizen Le Brun began drawing the porpoise that had been caught the day before. After that, Citizen Péron worked on it to make anatomical observations [...] Afterwards it was shared with the crew for lunch [...]"
Journal d'Anselme Riedlé, jardinier, 2 décembre 1800

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David Ho @davidho.bsky.social · 27/09/2026

The techbros don't want you to see this trailer. Pass it on.

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David Ho @davidho.bsky.social · 27/09/2026

It might be a sign of the apocalypse when you can buy peanut butter in France.

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David Ho @davidho.bsky.social · 26/09/2026

One of my favorite cycle paths in Paris.

A view of a bike path under an archway of a bridge, featuring stone columns and a paved road. The perspective conveys movement, with a hand gripping the handlebars and a bag mounted on the bike. Two cyclists can be seen ahead in the distance.

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David Ho @davidho.bsky.social · 25/09/2026

We're wrong to assume that everyone is pulling in the same direction on climate, even if our visions for policy and technology differ.

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David Ho @davidho.bsky.social · 24/09/2026

While we’re on the topic of Iceland, here’s the best thing from there. Thank me later.

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David Ho @davidho.bsky.social · 24/09/2026

Pick out the guy from Iceland and the one from Hawaiʻi. Unlike the weather, the people of Iceland are spectacular; so helpful, resourceful, and friendly.

Two guys stand in a rural area with mountains in the background. One person is smiling and wearing a green fleece jacket, while the other is unamused wearing a blue jacket with the hood up. The landscape features rolling hills and a cloudy sky.

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David Ho @davidho.bsky.social · 24/09/2026

Oh look, she's now the ambassador to the UK. I should go see her and talk about how much nicer the weather is in the UK. 🙃

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David Ho @davidho.bsky.social · 24/09/2026

I did hang out with the foreign minister of Iceland though.

A man and a woman stand together in an indoor setting. The man wears a dark sweater and jeans, while the woman is dressed in a green satin outfit with black accents.

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David Ho @davidho.bsky.social · 23/09/2026

Wtaf is this question my university just asked me about my project?

Does the project involve any work that could be interpreted as promoting DEIA, climate change research, or non-compliant to any Presidential Executive Orders?

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David Ho @davidho.bsky.social · 23/09/2026

I once said this to @amywestervelt.bsky.social and I stand by the statement. “I don't think you can call anything where you're getting more oil out of the ground to burn a climate solution.” drilled.media/news/ccs

"It doesn't make sense to use CCS to prolong our use of fossil fuels, especially to produce electricity," David Ho, professor at University of Hawaii and senior researcher at Columbia Uni-versity, said. 'The argument in favor of enhanced oil recovery is often that if they weren't using this capt red CO2 they'd be using some other CO2. But I don't think you can call anything where you're getting more oil out of the ground to burn a climate solution."

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David Ho @davidho.bsky.social · 23/09/2026

Picture: Vibrant red vessel gliding effortlessly across glass-like waters in an Icelandic fjord, leaving a brilliant white wake that carves through the mirror-like reflections of towering mountains and fluffy, sunlit clouds. Reality: Cold, windy, and miserable (+loud and smelly); not recommended.

An elevated, wide-angle shot captures a red and white boat cutting through calm, deep blue water, leaving a long, foaming white wake in its path. The serene surface of the water acts as a mirror, clearly reflecting dramatic white and grey clouds that drift across a bright blue sky. In the distance, rolling green hills and rugged mountain ridges stretch across the horizon, framing the tranquil fjord landscape under daylight.

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David Ho @davidho.bsky.social · 22/09/2026

Tellus has a long, storied history. I submitted my first paper there 30 years ago for that reason. I'm excited about Tellus's rebirth and plan to submit my next paper on the Arctic Ocean carbon cycle there. In the age of money-grubbing publishers, I encourage you to consider Tellus.

Publication Fees
Starting in 2026, Tellus operates as a Diamond Open Access journal.
All articles are published Open Access with no fees for authors — no submission charges and no article processing charges (APCs).
This model is made possible through financial support from the Max Planck Digital Library (MPDL), the International Meteorological Institute (IMI), and the Bolin Centre for Climate Research, which together cover the journal's publication costs.

🌊🧪⚒️

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David Ho @davidho.bsky.social · 22/09/2026

Dispatch from inside the US National Science Foundation…

Me: Are you still at NSF

Reply: Yup. *Emoji indicating house on fire*

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David Ho @davidho.bsky.social · 22/09/2026

Finally, a bag that holds almost the entire baguette!

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David Ho @davidho.bsky.social · 21/09/2026

Returning to my social media roots, I will be making wry observations about life in France. Got a baguette for dinner but already ate 2/3 of it before even starting to cook. 🫠 www.nytimes.com/explain/2022...

David Ho: Climate scientist at the University of Hawaii at Manoa and École Normale Supérieure in Paris. Talks oceans and carbon dioxide removal, with wry observations on transit, cycling and life in France, too.

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David Ho @davidho.bsky.social · 21/09/2026

Please enjoy this photo of two climate solutions.

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David Ho @davidho.bsky.social · 20/09/2026

There’s a family of four on this cargo bike. You don’t need an SUV, let alone a car.

Two adults and two children on a cargo bike

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David Ho @davidho.bsky.social · 20/09/2026

Too bad they didn’t include the part about funding changing physics. 🥲 today.rtl.lu/news/fact-ch...

The natural cycles, and not purported influences of weather modification, impact the number of storms, scientists told AFP.
David Ho, professor of oceanography at the University of Hawaii at Mänoa (archived here ), said that no technology "exists to either cause, prevent, or steer hurricanes."
Rather, El Niño in the Atlantic "chops off the heads of hurricanes," he told AFP in a September 16 email.

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David Ho @davidho.bsky.social · 19/09/2026

I hadn't seen the final version until yesterday. I reviewed an early draft and gave him feedback, and I am honored that he acknowledged me. I naturally did not accept his $500, but it was very generous of him to offer.

JOSEPH ROMM
Terrific nature piece. I'm hoping you can help me.
To: David Ho
April 11, 2023 at 22:25

Prof. Ho:
I thought your recent nature piece on CDR was terrific and vitally important. I'm already citing it. I'm hoping you could review 8 pages on CDR in one paper l've finished, and then review an entire 30-pager on DACCS maybe 2 months from now. I would be able to pay a $500 honoraria for your effort.
I am Dr. Joe Romm, former acting assistant secretary of energy for Energy Efficiency and Renewable Energy, although I am better known for the blog I founded, Climate Progress. Interestingly, while I have a PhD in physics from MIT, I actually did my thesis work under Walter Munk at Scripps.

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David Ho @davidho.bsky.social · 19/09/2026

Your feel-good story of the day: This 12-year-old kid who went viral at the 2021 Tour of Britain has signed for a Dutch grassroots club and development team that's a feeder partner of Team Visma-Lease a Bike (the team of the rider who gave him the bidon). www.cyclingnews.com/pro-cycling/...

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