David Ho

@davidho

Climate scientist; ocean carbon cycle and climate solutions. Professor @soest.hawaii.edu, University of Hawaiʻi at Mānoa; Visiting Faculty, Arizona State University.

3.446 Folgt119.960 Follower15.578 Posts

Bluesky

Ist das dein Profil?Übernimm es — dann gehört dir davidho.dirty.social.Profil übernehmen

David Ho@davidho· 28d

Lol

The indictment says the operation targeting climate activists was carried out on behalf of a client that is
"one of the world's largest oil and gas corporations, with headquarters in Irving, Texas". (When the indictment was first filed in 2022, ExxonMobil was the only major global oil company with headquarters in Irving, Texas.)

David Ho@davidho· 28d

Yeah, I ain't doing free work for you if you address me like that.

Dear Ho,
In view of your expertise I would be very grateful if you could review the following manuscript which has been

David Ho@davidho· 28d

All the bikes locked to this rack have been stolen.

An unusable bike rack bolted flush against a brick wall. Because it's so close to the wall, there's effectively no room to lock a bike's frame to the rack with a U-lock, forcing insecure wheel-only locking. A textbook example of a bike rack that looks useful but fails at its basic purpose.

David Ho@davidho· 28d

Inadvertently left my GoPro running…

David Ho@davidho· Jul 13

A friend sent me definitive proof of life from Mitch McConnell today.

An AI-generated, photograph set in a brightly lit hospital room with Mitch McConnell, Elvis Presley, Michael Jackson, and John Wayne. On the left, an elderly Mitch McConnell sits smiling in a blue hospital armchair with a pillow behind his back, wearing glasses, a pink checkered button-down shirt, and jeans, while holding a newspaper on his lap. Next to him, Elvis Presley is seated in an identical armchair, wearing his signature white, heavily embellished jumpsuit with gold studs, sunglasses, and giving a thumbs-up. Standing behind Elvis is Michael Jackson, waving with a smile while dressed in a vibrant red leather jacket, black fedora, black pants, and white socks with black shoes. On the far right, John Wayne stands smiling, wearing a brown cowboy hat, a tan vest over a matching long-sleeve shirt, a red neck kerchief, blue jeans, and a large belt buckle. The background includes standard hospital room features like an IV pole, a medical monitor, a window, and a wooden wardrobe cabinet with an extra cowboy hat sitting on top.

David Ho@davidho· Jul 13

Omg!

A large section of construction scaffolding has completely collapsed across a city street, leaving a massive pile of twisted metal poles, wooden planks, and torn white protective sheeting blocking the roadway. The remainder of the scaffolding leans precariously against the brick facade of an adjacent multi-story building. In the foreground, a firefighter in tan protective gear stands near a red fire engine on the left, monitoring the scene, while the blurred blue emergency lights of another response vehicle frame the lower right corner

David Ho@davidho· Jul 13

People who have walked with me know that I will cross the street rather than walk under scaffolding. This might seem irrational but sometimes I'm right. In Honolulu, scaffolding fell from the 22nd floor and crashed through the "protected" walkway below. 😬

An overhead nighttime view of a street next to a large building under construction. In the center of the frame, a segment of a green-walled, covered pedestrian protection walkway has been severely crushed and splintered, with broken wooden planks and scaffolding debris scattered across the sidewalk. The surrounding street is empty, framed by the fronds of palm trees in the foreground.

A low-angle shot looking up at the upper levels of a concrete building under construction against a cloudy sky. The structure features extensive rusted and blue railing as well as metal scaffolding, support beams, and safety netting on open concrete floors.

David Ho@davidho· Jul 10

I would hide this profile if I were him. It’s so embarrassing. It’s not a surprise he didn’t get tenure. What is surprising is that he got hired in the first place.

David Ho@davidho· Jul 10

Where is everyone?

A white touring bike in front of a shop that says, Friterie des Nations.

David Ho@davidho· Jul 9

Today’s Tour de France stage goes up Col du Tourmalet from the La Mongie side, but they don’t finish at Luz-Ardiden like one might expect. But we get to see Cirque de Gavarnie, part of a UNESCO World Heritage site. 👀

David Ho@davidho· Jul 9

“Hey guys, photosynthesis, amirite? Who wants to do the Calvin cycle with me?”

A tall artificial cell tower tree disguised as a conifer stands prominently against a clear blue sky. Nearby, there are several natural trees, including a green tree and a brownish one, along with a neatly trimmed hedge and a black gate beside a road.

David Ho@davidho· Jul 8

Offshore wind turbines being born.

A panoramic view of a calm sea under a clear blue sky, featuring distant wind turbines being built.

David Ho@davidho· Jul 8

If you cycle in Normandy, all you see is flax. France grows over 50% of the world’s textile flax. This region has the perfect mix of deep silty soil and a mild, damp oceanic climate, allowing for "dew retting" where the rain and sun naturally separate premium linen fibers right in the fields.

David Ho@davidho· Jul 7

The scenery is not terrible.

A landscape shot looking out over a coastal town and a sweeping beach bay. In the foreground, green grassy hills and low shrubs slope downward toward a small seaside village nestled along the shore. A wide, sandy beach curves into the distance, met by turquoise and deep blue ocean waters. White chalk cliffs rise along the far left edge of the coastline under a bright blue sky streaked with wispy white clouds.

David Ho@davidho· Jul 7

How often do you run into a @bsky.app mutual who you’ve never met, but who’s somehow staying at the same small hotel in the same small French town on the same day? We only found out because @carsten-diekmann.bsky.social responded to my post below. Anyway, here we are. 👋

Two men pose outside on a paved street with their bicycles under bright sunlight. On the left, a bald man with a grey beard and glasses wears a black T-shirt and blue jeans, sitting on the frame of a large, white electric cargo bicycle that features a spacious black storage compartment at the front. To the right, a man wearing a blue and orange cycling jersey with the words "PATRICK RIDES ON," a blue helmet, glasses, green shorts, and sneakers stands next to his white touring bicycle, which is equipped with teal rear pannier bags. In the background, parked cars, a motorcycle, and storefronts, including an Allianz building, line the street.

David Ho@davidho· Jul 5

Behold offshore wind turbines 😍

The horizon mostly with a cloudy sky and some tiny offshore wind turbines. A small boat is also visible.

David Ho@davidho· Jul 5

Wave if you see me on EuroVelo 4 👋

A bicycle with blue panniers parked beside a signpost indicating bike routes. The background includes trees and a road.

David Ho@davidho· Jul 5

Currently doing this.

David Ho@davidho· Jul 4

What does this yield sign mean under the traffic light?

A traffic light with a yield sign mounted under it

David Ho@davidho· Jul 4

Both Woking and Dorking sound like made up names.

Display board showing train departure information for South Western Railway to Woking, Weybridge, and Dorking, including their respective departure times, platform numbers, and coach details.

David Ho@davidho· Jul 4

😄

A world map filled with the flag of Cape Verde, featuring blue, red, and white stripes, along with yellow stars. Argentina is distinctly illustrated with its own flag colors and symbol.

David Ho@davidho· Jul 2

Oops, did I really call Matt Yglesias unhinged and unserious? 🫠

David Ho, a marine biogeochemist at the University of Hawai'i at Mănoa, expressed similar bewilderment about Gates, who argued in his memo that spending money on climate limits the funding available to fight disease and poverty.
"I didn't understand the motivation," Ho said. "It seems he should understand that the things that he cares about are affected by climate."
Ho was less charitable toward Matt Yglesias, a popular centrist pundit who has urged Democrats to embrace oil and gas. Ho called Yglesias' commentary "a bit unhinged."
"I don't take him seriously. I have him blocked on Bluesky," he said. "I just think he's unserious. But he does have a platform, and I guess people do listen to him."

David Ho@davidho· Jul 2

Congratulations! Our cover is less exciting.

The cover of the UK version of the book "The Reverse Centaur's Guide to Life After AI: How to Think About Artificial Intelligence Before It's Too Late" by Cory Doctorow. The cover features a white background with bold black and orange text, and what appears to be a broken window. Sadly no reverse centaur.

David Ho@davidho· Jul 1

I wore my National Pigeon Advocacy Association to my haircut, and a pigeon pooped on me. Serves me right. 😩

David Ho@davidho· Jun 30

Globally, 84% of the heatwave days people were exposed to in 2020-24 would not have occurred without climate change. The rate of deaths associated with heat exposure increased by 23% from the 1990s, reaching 546,000 deaths annually. Look where people are dying. www.thelancet.com/journals/lan...

A figure containing two world maps stacked vertically, labeled "A" (top) and "B" (bottom). The entire image is captioned at the bottom: "Figure 2: Average percentage of total deaths that were heat-related in 1990–99 (A) and 2012–21 (B)".

A single color-coded legend on the left side applies to both maps, showing a gradient of 17 steps. The scale ranges from very pale cream/pink representing the lowest percentage ("0.00 to <0.25") to increasingly darker shades of orange, red, and finally dark maroon/black representing the highest percentage ("3.75 to 4.00"). Antarctica is shaded grey on both maps.

Map A (Top Map - 1990–99): Shows the global distribution of heat-related deaths as a percentage of total deaths during the 1990s. Most of North America, Europe, Asia, South America, and Australia are shaded in light cream or pale orange colors, indicating low percentages (generally below 1.00%). The highest percentages are concentrated in North Africa, parts of the Middle East, and parts of Central/Southern Africa, which are shaded in medium-to-dark red, with a couple of countries showing very dark maroon patches.

Map B (Bottom Map - 2012–21): Shows the same metric for the 2012–21 period. Compared to Map A, there is a visible and significant intensification of color globally, particularly across the African continent and the Middle East. A large, continuous block of countries across North Africa, West Africa, and the Middle East is now shaded in the darkest maroon and black tones, indicating that heat-related deaths make up the highest bracket of total deaths (up to 4.00%). Central and Southern Africa also display much darker shades of red and maroon compared to Map A, while South America (notably Argentina) and parts of South Asia show a slight darkening into deeper orange-red tones.

David Ho@davidho· Jun 30

@geschehuebner.bsky.social is a Professor of Environment and Human Health and Director of the European Centre for Environment and Human Health at @exeter.ac.uk. Her research targets the intersection of energy, buildings, climate change, and health equity.

a woman with fair skin and light-colored hair tied back in a low ponytail looks directly at the camera with a gentle, subtle smile. She is wearing a light-colored blazer over a top and a thin necklace.

David Ho@davidho· Jun 30

@marinaromanello.bsky.social is the Executive Director of @lancetcountdown.bsky.social and a leading climate change and health researcher at @ucl.ac.uk. She specializes in tracking environmental exposures and their global impacts on public health.

A woman with short, tightly curled dark hair smiles directly at the camera. She is wearing a light-colored, subtly pinstriped blazer, and the background features a soft, heavily blurred outdoor setting with trees.

David Ho@davidho· Jun 30

In my case, I knew it because I toured the Itaipu Dam almost two decades ago. 😄 en.wikipedia.org/wiki/Itaipu_...

A man wearing a yellow hard hat branded with "ITAIPU BINACIONAL". He has an audio translation device around his neck and a slight smile, with a window and green curtains visible in the background.

David Ho@davidho· Jun 29

@richardabetts.bsky.social is a Chair in Climate Impacts at @exeter.ac.uk and Head of Climate Impacts Research at the Met Office Hadley Centre. His research examines how vegetation and land-use change, such as deforestation in Amazonia, modify climate and water resources.

A black and white portrait of a middle-aged man with a bald head, a short grey beard, and a warm smile. He is looking directly at the camera, crinkling his eyes, and wearing a patterned, button-up shirt featuring a subtle leaf and branch motif. The background is softly blurred, of an outdoor setting with trees and foliage.

David Ho@davidho· Jun 29

@jamesgdyke.info is Associate Professor in Earth System Science and Assistant Director of the Global Systems Institute at @exeter.ac.uk. His research uses computational models and data science to analyze complex climate systems, planetary tipping points, and global sustainability policy.