David HoClimate scientist researching the ocean carbon cycle and marine carbon dioxide removal (mCDR). Professor of Oceanography at University of HawaiΚ»i at MΔnoa.; Visiting Faculty at School of Ocean Futures, Arizona State University; Founder, Bamboo Bike Project; co-founder, [C]Worthy.
David HoHereβs my #introduction.
I am a climate scientist who studies the ocean carbon cycle and marine COβ removal (#mCDR).
Iβm a professor at University of HawaiΚ»i at MΔnoa, Visiting Faculty at Arizona State University, Science Advisor at Carbon Direct, and a co-founder of [C]Worthy.
According to the New York Times, here are my interests.
https://www.nytimes.com/explain/2022/04/22/climate/climate-change-causes-effects/climate-scientists-social-media
David HoIt's hard for people to visualize removing tons or billions of tons of carbon dioxide (COβ). I propose we talk about COβ removal (#CDR) like a time machine (e.g., this machine will take us back 5 minutes). For example:
Q: How far back in time does planting 100 million trees take us?
A: If one mature tree takes up an average of 25 kg of COβ per year, then 100 million trees will take up 2.5 MtCOβ. That's a time machine that takes us back 33 minutes and 6 seconds in a year. It's not a lot.
David HoAs someone who often conducts fieldwork in remote places, I find it really irritating that many applications now require an internet connection to function.
David HoPSA: Harp covers look like giant oven mitts. πͺ
David HoWe have to be purposeful about ending the use of fossil fuels because theyβre not going to end themselves anytime soon. While wind and solar are cheaper, they are not as profitable. Therein lies the problem.
David Ho"A federal judge in San Francisco has ordered the National Science Foundation to restore about 300 grants to the University of California, Los Angeles (UCLA) that it suspended on 30 July, saying the agency violated a preliminary injunction she issued in June after NSF terminated a different set of grants to researchers across the UC system."
https://www.science.org/content/article/judge-tells-nsf-reinstate-suspended-ucla-grants?utm_campaign=Science+Magazine&utm_source=bluesky&utm_medium=ownedSocial
David HoTemperature records are going to keep getting broken until morale improves (or until we stop burning fossil fuels).
https://www.theguardian.com/environment/2025/aug/13/temperature-records-heatwave-europe-france-croatia-wildfires?utm_source=dlvr.it&utm_medium=bluesky&CMP=bsky_gu
David HoI hope this article about doodles etched onto silicon chips offers you some relief from all the doom.
https://www.nytimes.com/2025/08/12/technology/silicon-chips-doodles.html?unlocked_article_code=1.dk8.ojBJ.Qmag8Z17x8Xz&smid=url-share
David HoRussia is suspected of hacking the federal court document management system, compromising sensitive records, including those related to national security crimes.
Hmmβ¦is Trump still meeting with Putin on US soil?
https://www.nytimes.com/2025/08/12/us/politics/russia-hack-federal-court-system.html?unlocked_article_code=1.dk8.i_rE.IL3OxKh0QIdv&smid=url-share
David HoClimate change is altering the natural worldβs soundscape, with declining bird, insect, and amphibian populations leading to quieter environments. This βsensory extinctionβ is exacerbated by noise pollution from human activities.
Listen to these recordings in this article!
https://defector.com/how-climate-change-is-transforming-the-soundtrack-of-the-natural-world?giftLink=47b70ca5e48fcd470135bb9d5b5c83bb
David HoWhat do people think about putting solar panels on the balconies of the Haussmann buildings of Paris?
https://wapo.st/4fRTIOJ
David HoJudge James Ho is the worst Ho.
https://www.nytimes.com/2025/08/09/us/judge-ho-trump-border.html?unlocked_article_code=1.dk8.dyu6.5FxuFcpJT18C&smid=url-share