Mark Hopwood
@markinchina.bsky.social
Scientist living in Shenzhen, China. Associate Professor in Marine Biogeochemistry at SUSTech, Associate Editor at JGR:Oceans. Father to a baby dragon.
外冷内热, he/him 🌊 🐻❄️ 🐧
外冷内热, he/him 🌊 🐻❄️ 🐧
The domination of scientific publishing by major commercial publishers is damaging science... Amen to that.
Journals should be led by public scientists
Journals should be publicly owned
& "Number of papers published" should mean nothing to anyone
#AcadmicChatter
Journals should be led by public scientists
Journals should be publicly owned
& "Number of papers published" should mean nothing to anyone
#AcadmicChatter
November 17, 2025 at 12:55 AM
The domination of scientific publishing by major commercial publishers is damaging science... Amen to that.
Journals should be led by public scientists
Journals should be publicly owned
& "Number of papers published" should mean nothing to anyone
#AcadmicChatter
Journals should be led by public scientists
Journals should be publicly owned
& "Number of papers published" should mean nothing to anyone
#AcadmicChatter
I've lived on the top floor before, but previously this was in the context of a bedroom in the attic 😅
The view over Shenzhen Bay and Hong Kong is slightly better this time 😆
The view over Shenzhen Bay and Hong Kong is slightly better this time 😆
November 17, 2025 at 12:27 AM
I've lived on the top floor before, but previously this was in the context of a bedroom in the attic 😅
The view over Shenzhen Bay and Hong Kong is slightly better this time 😆
The view over Shenzhen Bay and Hong Kong is slightly better this time 😆
Free t-shirts must rank close to free food in the hierarchy of student motivation 😆
Our lab releases its first clothing line featuring work from our oceanography field program in Daya Bay 🌊
Our lab releases its first clothing line featuring work from our oceanography field program in Daya Bay 🌊
November 10, 2025 at 1:39 AM
Free t-shirts must rank close to free food in the hierarchy of student motivation 😆
Our lab releases its first clothing line featuring work from our oceanography field program in Daya Bay 🌊
Our lab releases its first clothing line featuring work from our oceanography field program in Daya Bay 🌊
Despite having a baby this year, perhaps surprisingly, my household's CO2 footprint is the lowest it's ever been 😅
I calculate this yearly for my undergraduate course. I haven't flown in 14 months and my wife has more than halved her business trips, so our footprint has dropped 🌎 #Flyingless
I calculate this yearly for my undergraduate course. I haven't flown in 14 months and my wife has more than halved her business trips, so our footprint has dropped 🌎 #Flyingless
November 4, 2025 at 4:54 AM
Despite having a baby this year, perhaps surprisingly, my household's CO2 footprint is the lowest it's ever been 😅
I calculate this yearly for my undergraduate course. I haven't flown in 14 months and my wife has more than halved her business trips, so our footprint has dropped 🌎 #Flyingless
I calculate this yearly for my undergraduate course. I haven't flown in 14 months and my wife has more than halved her business trips, so our footprint has dropped 🌎 #Flyingless
Nice weekend trip to Daya Bay field station with SUSTech undergraduates learning about coastal biogeochemistry, ecology and a mandatory photo opportunity with Nemo et al., 😅 🌊
November 3, 2025 at 2:08 AM
Nice weekend trip to Daya Bay field station with SUSTech undergraduates learning about coastal biogeochemistry, ecology and a mandatory photo opportunity with Nemo et al., 😅 🌊
I visited the very beautiful New Yuan Ming Yuan in Zhuhai (Guangdong, China) this week. The palace gardens are said to have been inspired by the Old Summer Palace in Beijing which was looted and burned to the ground by some very bad people from a very bad country 😵😵😵 in 1860
October 19, 2025 at 7:37 AM
I visited the very beautiful New Yuan Ming Yuan in Zhuhai (Guangdong, China) this week. The palace gardens are said to have been inspired by the Old Summer Palace in Beijing which was looted and burned to the ground by some very bad people from a very bad country 😵😵😵 in 1860
Happy #FieldworkFriday from our SUSTech students who are busy in Dapeng running large-scale incubations to look at the side-effects of Ocean Alkalinity Enhancement on marine ecosystems 🌊
October 17, 2025 at 2:49 AM
Happy #FieldworkFriday from our SUSTech students who are busy in Dapeng running large-scale incubations to look at the side-effects of Ocean Alkalinity Enhancement on marine ecosystems 🌊
I think this is my favorite ever typo 🍾
Alas, there is usually too little champagne in the field, and too much work 🌊
Alas, there is usually too little champagne in the field, and too much work 🌊
October 11, 2025 at 7:17 AM
I think this is my favorite ever typo 🍾
Alas, there is usually too little champagne in the field, and too much work 🌊
Alas, there is usually too little champagne in the field, and too much work 🌊
The UK is arresting Palestine supporters for holding signs under terror legislation. This is an appalling violation of civil rights. How can @ukparliament.parliament.uk allow this?
Meanwhile Israel acts with impunity, protected by the west as it murders, starves and abuses civilians #FreePalestine
Meanwhile Israel acts with impunity, protected by the west as it murders, starves and abuses civilians #FreePalestine
September 10, 2025 at 1:25 AM
The UK is arresting Palestine supporters for holding signs under terror legislation. This is an appalling violation of civil rights. How can @ukparliament.parliament.uk allow this?
Meanwhile Israel acts with impunity, protected by the west as it murders, starves and abuses civilians #FreePalestine
Meanwhile Israel acts with impunity, protected by the west as it murders, starves and abuses civilians #FreePalestine
"Negative CO2 emissions" became a hot topic in oceanography. Yet there are many concerns about potential side-effects of trying to manipulate the C cycle. With partners from across Guangdong & Hong Kong we've developed a coastal site to investigate side-effects of Ocean Alkalinity Enhancement 🌊 🐠
September 3, 2025 at 8:59 AM
"Negative CO2 emissions" became a hot topic in oceanography. Yet there are many concerns about potential side-effects of trying to manipulate the C cycle. With partners from across Guangdong & Hong Kong we've developed a coastal site to investigate side-effects of Ocean Alkalinity Enhancement 🌊 🐠
Meltwater strongly perturbs the carbonate system in the ocean. Henson et al., use new data from Greenland to show that, as well as driving an inorganic CO2 sink, the diluting influence of meltwater on alkalinity weakens the buffering capacity of these regions 🌊
www.nature.com/articles/s43...
www.nature.com/articles/s43...
August 26, 2025 at 1:19 AM
Meltwater strongly perturbs the carbonate system in the ocean. Henson et al., use new data from Greenland to show that, as well as driving an inorganic CO2 sink, the diluting influence of meltwater on alkalinity weakens the buffering capacity of these regions 🌊
www.nature.com/articles/s43...
www.nature.com/articles/s43...
I'm Mark, I study coastal biogeochemistry using a combination of fieldwork, sensors and laboratory-based measurements. I'm particularly interested to understand ice-ocean interaction and how increasing freshwater discharge from the world's ice sheets will affect ocean processes 🌊 🐻❄️ 🐧 🐳
August 21, 2025 at 2:54 AM
I'm Mark, I study coastal biogeochemistry using a combination of fieldwork, sensors and laboratory-based measurements. I'm particularly interested to understand ice-ocean interaction and how increasing freshwater discharge from the world's ice sheets will affect ocean processes 🌊 🐻❄️ 🐧 🐳
Instead of addressing the humanitarian crisis in Gaza and calling out Israel's murder of 18,500 children, the UK is arresting peaceful pro-Palestinian protesters. I'm appalled by Yvette Cooper and Keir Starmer's decision to label these people 'terrorists' #FreePalestine
www.bbc.com/news/article...
www.bbc.com/news/article...
August 10, 2025 at 8:20 AM
Instead of addressing the humanitarian crisis in Gaza and calling out Israel's murder of 18,500 children, the UK is arresting peaceful pro-Palestinian protesters. I'm appalled by Yvette Cooper and Keir Starmer's decision to label these people 'terrorists' #FreePalestine
www.bbc.com/news/article...
www.bbc.com/news/article...
Back out to our local field-sites for some estuarine sampling this morning. It might be quiet on campus over summer, but many of our incoming SUSTech MSc students are keen to get started. They've joined us as early as summer research assistants to get some valuable fieldwork in 🌊 🌴 🐠
July 21, 2025 at 1:42 AM
Back out to our local field-sites for some estuarine sampling this morning. It might be quiet on campus over summer, but many of our incoming SUSTech MSc students are keen to get started. They've joined us as early as summer research assistants to get some valuable fieldwork in 🌊 🌴 🐠
From basking in 35°C heat with iced lates yesterday, to being locked inside during torrential rain from Typhoon Wipha today, such is life in the tropics 🌴 #Shenzhen
July 20, 2025 at 7:42 AM
From basking in 35°C heat with iced lates yesterday, to being locked inside during torrential rain from Typhoon Wipha today, such is life in the tropics 🌴 #Shenzhen
A well-written piece on the inherent risks of #geoengineering This paragraph about BECCS (bioenergy with carbon capture and storage) is a classic cautionary tale in over-type of new technology as a climate solution
carnegieendowment.org/research/202...
carnegieendowment.org/research/202...
July 18, 2025 at 10:46 AM
A well-written piece on the inherent risks of #geoengineering This paragraph about BECCS (bioenergy with carbon capture and storage) is a classic cautionary tale in over-type of new technology as a climate solution
carnegieendowment.org/research/202...
carnegieendowment.org/research/202...
AI is being used to help write scientific papers and proposals. It's also being used to review scientific papers and proposals.
This would appear to raise quite problematic questions about the whole process and the role of flesh-and-blood scientists in it 😅🤖⁉️ #Science #Academia #AI
This would appear to raise quite problematic questions about the whole process and the role of flesh-and-blood scientists in it 😅🤖⁉️ #Science #Academia #AI
July 7, 2025 at 3:25 AM
Graduation day at SUSTech! Capes, robes and lots of photos 👩🎓🎉🍾
July 1, 2025 at 8:43 AM
Graduation day at SUSTech! Capes, robes and lots of photos 👩🎓🎉🍾
This is what happens when a journal is largely automated with nobody meaningfully checking anything...
June 25, 2025 at 9:17 AM
This is what happens when a journal is largely automated with nobody meaningfully checking anything...
As usual, high quality scientific editing from Frontiers 🤣 🌊
June 25, 2025 at 5:59 AM
As usual, high quality scientific editing from Frontiers 🤣 🌊
Yesterday Shenzhen hosted the opening ceremony for Guangdong's World Ocean Day events at an ocean education outreach show. Showing off growth in Shenzhen's education & scientific sectors is easy. In 1980, the city did not have a university, now it has 17 & a new marine centre under construction.
June 7, 2025 at 6:36 AM
Yesterday Shenzhen hosted the opening ceremony for Guangdong's World Ocean Day events at an ocean education outreach show. Showing off growth in Shenzhen's education & scientific sectors is easy. In 1980, the city did not have a university, now it has 17 & a new marine centre under construction.
Happy to kick off the weekend's World Ocean Day events in Shenzhen today. SUSTech students will be sharing their oceanography projects in video clips around the city 🌊
June 6, 2025 at 10:57 AM
Happy to kick off the weekend's World Ocean Day events in Shenzhen today. SUSTech students will be sharing their oceanography projects in video clips around the city 🌊
Fe is a fickle element to work with, particularly for fluxes. 'Big' & 'small' flux estimates for Fe input into the ocean from the Peruvian shelf may both be correct, but measuring different things because Fe is rapidly scavenged close to source 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
May 26, 2025 at 8:28 AM
Fe is a fickle element to work with, particularly for fluxes. 'Big' & 'small' flux estimates for Fe input into the ocean from the Peruvian shelf may both be correct, but measuring different things because Fe is rapidly scavenged close to source 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Repeat measurements of Fe in the Southern Ocean, especially outside summer, are very rare. A nice read in AGU Advances, Traill et al., present extensive full seasonal work from the Southern Ocean Time Series 🌊
agupubs.onlinelibrary.wiley.com/journal/2576...
agupubs.onlinelibrary.wiley.com/journal/2576...
May 20, 2025 at 1:12 AM
Repeat measurements of Fe in the Southern Ocean, especially outside summer, are very rare. A nice read in AGU Advances, Traill et al., present extensive full seasonal work from the Southern Ocean Time Series 🌊
agupubs.onlinelibrary.wiley.com/journal/2576...
agupubs.onlinelibrary.wiley.com/journal/2576...
A lovely day at SUSTech yesterday. After 3 years of hard work, my first student passed her viva with commendations from all 3 examiners 🥂 When Jiajia started it was just the two of us 😅
May 14, 2025 at 12:15 PM
A lovely day at SUSTech yesterday. After 3 years of hard work, my first student passed her viva with commendations from all 3 examiners 🥂 When Jiajia started it was just the two of us 😅