David Ho
@davidho.bsky.social
Climate scientist; ocean carbon cycle and climate solutions. Professor, University of Hawaiʻi at Mānoa; Visiting Faculty, Arizona State University. https://linktr.ee/david_ho
Pinned
David Ho
@davidho.bsky.social
· Oct 29
Carbon dioxide removal is not a current climate solution — we need to change the narrative
Drastically reduce emissions first, or carbon dioxide removal will be next to useless.
www.nature.com
In recognition of us doing fuck all to reduce emissions, let me remind y'all that carbon dioxide removal (CDR) is useless unless we decarbonize drastically.
rdcu.be/dbFbB
rdcu.be/dbFbB
FIFA sucks
FIFA’s Leader Often Flatters Trump. Now, He’s Awarded Him a Peace Prize.
www.nytimes.com
December 7, 2025 at 2:44 AM
FIFA sucks
It’s us
What caused a massive die-off of penguins off the South African coast?
There are fewer than 10,000 breeding pairs of African penguins left today.
wapo.st
December 7, 2025 at 2:39 AM
It’s us
Reposted by David Ho
A week ago, I made the point that films/tv etc focus on cars, normalising car-filled city streets. I asked for examples highlighting bikes/trams/buses/walking, and got 1.1k replies. Data!
Here is my unscientific analysis of those suggestions (and no, I can’t believe I did this either). [1/n] 🧵
Here is my unscientific analysis of those suggestions (and no, I can’t believe I did this either). [1/n] 🧵
December 6, 2025 at 10:00 AM
A week ago, I made the point that films/tv etc focus on cars, normalising car-filled city streets. I asked for examples highlighting bikes/trams/buses/walking, and got 1.1k replies. Data!
Here is my unscientific analysis of those suggestions (and no, I can’t believe I did this either). [1/n] 🧵
Here is my unscientific analysis of those suggestions (and no, I can’t believe I did this either). [1/n] 🧵
Did you make sure to keep the camera away from the volcano like we discussed?
Yeah, about that…
Yeah, about that…
December 6, 2025 at 8:32 PM
Did you make sure to keep the camera away from the volcano like we discussed?
Yeah, about that…
Yeah, about that…
If you go back a few minutes, you can see the camera get hit by debris and stop working. 🥹
![A blurry, chaotic close-up view of volcanic activity from a live webcam feed at Kīlauea’s south Halemaʻumaʻu crater. The image is dominated by swirling gray-brown ash, steam, and motion blur. Streaks of glowing red lava are scattered across the frame, visible through the haze, with brighter molten patches near the lower right corner. The upper left includes an overlaid timestamp reading “2025-12-06 09:56:59” and the stream title “USGS [V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater).” At the bottom, YouTube interface elements are visible, including the “LIVE” indicator, volume icon, and the progress bar.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:77lswp42lgjyw36ozuo7kt7e/bafkreiflvmt34klqx6v4ccte5vnufbhuxer2anjnfh2bsb6p7kggjvlbqq@jpeg)
December 6, 2025 at 8:20 PM
If you go back a few minutes, you can see the camera get hit by debris and stop working. 🥹
PSA: Kīlauea here in Hawaiʻi is doing its thing and you want to see it.
[V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater)
YouTube video by USGS
www.youtube.com
December 6, 2025 at 7:27 PM
PSA: Kīlauea here in Hawaiʻi is doing its thing and you want to see it.
Reposted by David Ho
📣 #IPCC is calling for the nominations of authors for the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage!
Find out more 👉 https://www.ipcc.ch/2025/11/19/calltficdrccus/
Submissions close 12 December 2025
Find out more 👉 https://www.ipcc.ch/2025/11/19/calltficdrccus/
Submissions close 12 December 2025
December 5, 2025 at 6:01 PM
📣 #IPCC is calling for the nominations of authors for the Methodology Report on Carbon Dioxide Removal Technologies, Carbon Capture Utilization and Storage!
Find out more 👉 https://www.ipcc.ch/2025/11/19/calltficdrccus/
Submissions close 12 December 2025
Find out more 👉 https://www.ipcc.ch/2025/11/19/calltficdrccus/
Submissions close 12 December 2025
Deep sea mining is very bad for deep sea ecosystems.
What Scientists Found When a Deep Sea Mining Company Invited Them In
www.nytimes.com
December 6, 2025 at 6:26 PM
Deep sea mining is very bad for deep sea ecosystems.
Veganism is looking pretty good.
Hawaii Dept. of Health recalls cheese products sold at Foodland and Sam’s Club for Listeria contamination
The recalled products were distributed nationwide, including through retailers such as Sam’s Club and Foodland in Hawaii.
www.hawaiinewsnow.com
December 5, 2025 at 4:04 PM
Veganism is looking pretty good.
Reposted by David Ho
Recent publication by Malte Jürchott, now at Bjerknes Centre for Climate Research, that challenges the marine CDR perception of artificial upwelling: unintended effects on ocean heat uptake are clearly more important.
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
Direct cooling effect of artificial upwelling dominates over its marine carbon dioxide removal potential
Direct cooling effect of artificial upwelling dominates over its marine carbon dioxide removal potential, Jürchott, M, Oschlies, A, Mengis, N, Frenger, I, Koeve, W
doi.org
December 5, 2025 at 3:38 PM
Recent publication by Malte Jürchott, now at Bjerknes Centre for Climate Research, that challenges the marine CDR perception of artificial upwelling: unintended effects on ocean heat uptake are clearly more important.
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
doi.org/10.1088/1748...
via @ioppublishing.bsky.social
Reposted by David Ho
This is a hugely important job at @knightcolumbia.org, and an opportunity to help chart the course of an unusually dynamic, effective organization that is already a leading defender of democratic rights, institutions, and values. Please send good people our way! knightcolumbia.org/page/chief-o...
December 5, 2025 at 3:29 PM
This is a hugely important job at @knightcolumbia.org, and an opportunity to help chart the course of an unusually dynamic, effective organization that is already a leading defender of democratic rights, institutions, and values. Please send good people our way! knightcolumbia.org/page/chief-o...
Time for some autistic Humboldt penguins.
Penguins queue in Paris zoo for their bird flu jabs
A curious seagull strolled nonchalantly through the penguin enclosure at a zoo in Paris. The only birds to get a jab at the zoo are those that live outdoors, or in enclosures with mesh that could allo...
www.yahoo.com
December 5, 2025 at 3:33 PM
Time for some autistic Humboldt penguins.
Reposted by David Ho
In a @natclimate.nature.com paper out today Frank Venmans
@wrickels.bsky.social and @bengroom.bsky.social outline how offsetting methane with CO2 removal contracts of 30 years has several advantages over offsetting with permanent removal contracts
www.nature.com/articles/s41...
@wrickels.bsky.social and @bengroom.bsky.social outline how offsetting methane with CO2 removal contracts of 30 years has several advantages over offsetting with permanent removal contracts
www.nature.com/articles/s41...
Temporary carbon dioxide removals to offset methane emissions - Nature Climate Change
Methane emissions have a large short-term impact on temperature, which can be potentially offset by nature-based solutions that provide temporary carbon storage. This research demonstrates such matchi...
www.nature.com
December 5, 2025 at 1:34 PM
In a @natclimate.nature.com paper out today Frank Venmans
@wrickels.bsky.social and @bengroom.bsky.social outline how offsetting methane with CO2 removal contracts of 30 years has several advantages over offsetting with permanent removal contracts
www.nature.com/articles/s41...
@wrickels.bsky.social and @bengroom.bsky.social outline how offsetting methane with CO2 removal contracts of 30 years has several advantages over offsetting with permanent removal contracts
www.nature.com/articles/s41...
Reposted by David Ho
Just not that into ewes: ‘gay sheep’ escape slaughter and take over a New York catwalk
Just not that into ewes: ‘gay sheep’ escape slaughter and take over a New York catwalk
Designer Michael Schmidt’s 36-piece collection was made from the wool of rams who have shown same-sex attraction
www.theguardian.com
December 5, 2025 at 3:03 PM
Just not that into ewes: ‘gay sheep’ escape slaughter and take over a New York catwalk
Reposted by David Ho
Delighted to join @mayoroflondon.bsky.social to launch London's first fully electric cycling & walking ferry.
Crossing the Thames between Rotherhithe & Canary Wharf, it carries up to 100 bikes and helps connect up two of the UK's busiest bike lanes. 🚲🚶♀️🌊
bbc.co.uk/news/article...
Crossing the Thames between Rotherhithe & Canary Wharf, it carries up to 100 bikes and helps connect up two of the UK's busiest bike lanes. 🚲🚶♀️🌊
bbc.co.uk/news/article...
December 5, 2025 at 3:04 PM
Delighted to join @mayoroflondon.bsky.social to launch London's first fully electric cycling & walking ferry.
Crossing the Thames between Rotherhithe & Canary Wharf, it carries up to 100 bikes and helps connect up two of the UK's busiest bike lanes. 🚲🚶♀️🌊
bbc.co.uk/news/article...
Crossing the Thames between Rotherhithe & Canary Wharf, it carries up to 100 bikes and helps connect up two of the UK's busiest bike lanes. 🚲🚶♀️🌊
bbc.co.uk/news/article...
Reposted by David Ho
Carney was UN's special envoy on climate action. His policy changes as Canada's PM will ensure the country will miss all climate goals, says @stevenguilbeault.bsky.social who resigned from Carney's cabinet in protest.
Story with @daniellebochove.bsky.social
🎁🔗 www.bloomberg.com/news/article...
Story with @daniellebochove.bsky.social
🎁🔗 www.bloomberg.com/news/article...
Carney Defector Says ‘No Way’ Canada Can Meet Climate Goals Now
Ex-minister Steven Guilbeault said the government’s recent policy decisions put its targets for 2030, 2035 and even 2050 out of reach.
www.bloomberg.com
December 5, 2025 at 2:34 PM
Carney was UN's special envoy on climate action. His policy changes as Canada's PM will ensure the country will miss all climate goals, says @stevenguilbeault.bsky.social who resigned from Carney's cabinet in protest.
Story with @daniellebochove.bsky.social
🎁🔗 www.bloomberg.com/news/article...
Story with @daniellebochove.bsky.social
🎁🔗 www.bloomberg.com/news/article...
I’m sure this is great for everyone with eyes.
Netflix agrees to buy Warner Bros Discovery studio and streaming business in $83bn deal
Streaming service to gain control of studio behind Harry Potter and Batman, as well as HBO, home to The White Lotus and Game of Thrones
www.theguardian.com
December 5, 2025 at 2:23 PM
I’m sure this is great for everyone with eyes.
Vision zero failed in the US because car drivers don’t care about people outside of cars.
America’s plan to protect pedestrians failed. A young woman’s death reveals why.
U.S. officials adopted Europe's Vision Zero initiative, but many cities have seen an increase in pedestrian fatalities despite efforts to improve road safety.
wapo.st
December 5, 2025 at 2:19 AM
Vision zero failed in the US because car drivers don’t care about people outside of cars.
Reposted by David Ho
Important updates from @agu.org for those attending #AGU25 in New Orleans as the city is invaded by federal paramilitaries in operation “Catahoula Crunch”
New Orleans updates | AGU25
www.agu.org
December 4, 2025 at 6:08 PM
Our infrastructure isn’t ready for what’s coming.
The Bay took over the highway during this morning's #KingTides in Marin.
December 5, 2025 at 12:13 AM
Our infrastructure isn’t ready for what’s coming.
Make America grate again
Shredded cheese sold in dozens of states recalled due to potential for metal fragment contamination
The Food and Drug Administration says that there is a recall for more than 260,000 cases of shredded cheese sold in 31 states and Puerto Rico because of potential metal fragment contamination.
bit.ly
December 4, 2025 at 12:05 PM
Make America grate again
Apparently people are once again asking who's at fault here. We can improve road safety dramatically by revoking the driver's licence of everyone who thinks it's the cyclist's fault.
December 4, 2025 at 10:15 AM
Apparently people are once again asking who's at fault here. We can improve road safety dramatically by revoking the driver's licence of everyone who thinks it's the cyclist's fault.
Apparently global warming is bad for plants and bad for the climate system.
Loss of vegetation functions during the Paleocene–Eocene Thermal Maximum - Nature Communications
Combining fossil records and vegetation modelling, this study shows that global warming during the Paleocene-Eocene Thermal Maximum 56 million years ago exceeded the adaptation capacity of vegetation,...
www.nature.com
December 4, 2025 at 9:57 AM
Apparently global warming is bad for plants and bad for the climate system.
Potentially unpopular opinion: All cats should be kept inside the house.
🇫🇷 French cat under “house arrest” after neighbour's complaint
A French cat has been put under “house arrest” after a neighbour complained he kept jumping into his garden.
#AFPVertical
A French cat has been put under “house arrest” after a neighbour complained he kept jumping into his garden.
#AFPVertical
December 4, 2025 at 9:42 AM
Potentially unpopular opinion: All cats should be kept inside the house.
Reposted by David Ho
We tested Europe’s luxurious new ‘business-class’ sleeper bus between Amsterdam and Zurich
We tested Europe’s luxurious new ‘business-class’ sleeper bus between Amsterdam and Zurich
A new overnight bus service in the Netherlands, Belgium and Switzerland offers comfort and sustainability
www.theguardian.com
December 4, 2025 at 9:13 AM
We tested Europe’s luxurious new ‘business-class’ sleeper bus between Amsterdam and Zurich