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.
https://www.hopwood-marine-science.com/
He/him 🌊 🐻❄️ 🐧
https://www.hopwood-marine-science.com/
He/him 🌊 🐻❄️ 🐧
Best wishes for the Spring festival. As our lab breaks for Chinese New Year my family are visiting to spend some time with our little dragon 🧧🏮🐎
February 7, 2026 at 9:11 AM
Best wishes for the Spring festival. As our lab breaks for Chinese New Year my family are visiting to spend some time with our little dragon 🧧🏮🐎
Reposted by Mark Hopwood
AGU is now accepting applications for Editors-in-Chief across five publications, with terms starting Jan 1, 2027. These roles help shape editorial standards, research quality, and peer review in Earth & space science. Apply by May 1, 2026.
buff.ly/8Mxy8vq
buff.ly/8Mxy8vq
February 3, 2026 at 1:33 PM
AGU is now accepting applications for Editors-in-Chief across five publications, with terms starting Jan 1, 2027. These roles help shape editorial standards, research quality, and peer review in Earth & space science. Apply by May 1, 2026.
buff.ly/8Mxy8vq
buff.ly/8Mxy8vq
In 2024, we encountered a perilous MAYDAY.
A small yacht sailed blind into dense ice with heavy fog and got stuck for 3 days. Drinking water froze, ice pressed the hull & polar bears were nearby. With 0 chance of rescue by helicopter or icebreaker, only a lucky change in weather saved 6 people.
A small yacht sailed blind into dense ice with heavy fog and got stuck for 3 days. Drinking water froze, ice pressed the hull & polar bears were nearby. With 0 chance of rescue by helicopter or icebreaker, only a lucky change in weather saved 6 people.
January 31, 2026 at 6:41 AM
In 2024, we encountered a perilous MAYDAY.
A small yacht sailed blind into dense ice with heavy fog and got stuck for 3 days. Drinking water froze, ice pressed the hull & polar bears were nearby. With 0 chance of rescue by helicopter or icebreaker, only a lucky change in weather saved 6 people.
A small yacht sailed blind into dense ice with heavy fog and got stuck for 3 days. Drinking water froze, ice pressed the hull & polar bears were nearby. With 0 chance of rescue by helicopter or icebreaker, only a lucky change in weather saved 6 people.
In July, I will be teaching in Shanghai at SJTU for their UN Sustainable Development Goals summer school. 9 summer courses are available suitable for any interested students. I will co-teach "The marine carbon pump jigsaw: science, sustainability and management"
global.sjtu.edu.cn/en/study-sjt...
global.sjtu.edu.cn/en/study-sjt...
Study@SJTU - Shanghai Jiao Tong University
global.sjtu.edu.cn
January 31, 2026 at 5:32 AM
In July, I will be teaching in Shanghai at SJTU for their UN Sustainable Development Goals summer school. 9 summer courses are available suitable for any interested students. I will co-teach "The marine carbon pump jigsaw: science, sustainability and management"
global.sjtu.edu.cn/en/study-sjt...
global.sjtu.edu.cn/en/study-sjt...
Reposted by Mark Hopwood
Not all earthlings appreciate CTD’s but the can be very curious about them. Here are a mother polar bear 🐻❄️ with her two cubs inspecting our sea cable in the Canadian 🇨🇦 Arctic Ocean back in 2015 youtu.be/JC2befsNa1Y The CTD is 2000 m down. The bears were not hurt and swam off shortly after 🌊
Polar Bears Trying to Eat Research Equipment in the Beaufort Sea
YouTube video by Fukushima InFORM
youtu.be
January 22, 2026 at 3:33 PM
Not all earthlings appreciate CTD’s but the can be very curious about them. Here are a mother polar bear 🐻❄️ with her two cubs inspecting our sea cable in the Canadian 🇨🇦 Arctic Ocean back in 2015 youtu.be/JC2befsNa1Y The CTD is 2000 m down. The bears were not hurt and swam off shortly after 🌊
Reposted by Mark Hopwood
“President Trump’s talk of ‘buying’ Greenland is not only an affront to Greenland’s autonomy but also a dangerous distraction from the urgent work of addressing environmental change impacts to US citizens,” the letter reads. eos.org/research-and...
Hundreds of Scientists “Vehemently Oppose” U.S. Effort to Purchase Greenland - Eos
About 350 scientists scientists have signed a letter condemning U.S. President Donald Trump’s efforts to acquire Greenland.
eos.org
January 12, 2026 at 9:01 PM
“President Trump’s talk of ‘buying’ Greenland is not only an affront to Greenland’s autonomy but also a dangerous distraction from the urgent work of addressing environmental change impacts to US citizens,” the letter reads. eos.org/research-and...
Reposted by Mark Hopwood
Greenland
January 10, 2026 at 1:47 PM
Greenland
Very happy to welcome Dr Abby Guo to our group today as a postdoc. She will be using data from China's largest Ocean Alkalinity Enhancement trials to understand how well the concept works as a C sink and what the potential side-effects are on marine ecosystems 🌊
www.hopwood-marine-science.com/about
www.hopwood-marine-science.com/about
January 13, 2026 at 3:58 AM
Very happy to welcome Dr Abby Guo to our group today as a postdoc. She will be using data from China's largest Ocean Alkalinity Enhancement trials to understand how well the concept works as a C sink and what the potential side-effects are on marine ecosystems 🌊
www.hopwood-marine-science.com/about
www.hopwood-marine-science.com/about
I love how capable some of my students think I am. They will email me a huge draft, a thesis chapter, paper or long assignment, 2 to 5 minutes before we meet, then walk into my office and ask me what I thought about it and how it can be improved.
I can read quite fast, but not that fast.... 😅😅😅
I can read quite fast, but not that fast.... 😅😅😅
January 13, 2026 at 2:29 AM
I love how capable some of my students think I am. They will email me a huge draft, a thesis chapter, paper or long assignment, 2 to 5 minutes before we meet, then walk into my office and ask me what I thought about it and how it can be improved.
I can read quite fast, but not that fast.... 😅😅😅
I can read quite fast, but not that fast.... 😅😅😅
#Greenland is a wonderful place. Its people are warm, open, welcoming and very observant about the natural environment of their home. They are not a colony to be bought, sold, occupied or invaded. They are an independent nation to be respected in the global community.
www.bbc.com/news/article...
www.bbc.com/news/article...
Greenlanders express fear and indignation as Trump eyes territory
Greenlanders tell the BBC they have no interest in becoming American as the White House restates its desire for annexation.
www.bbc.com
January 8, 2026 at 1:36 AM
#Greenland is a wonderful place. Its people are warm, open, welcoming and very observant about the natural environment of their home. They are not a colony to be bought, sold, occupied or invaded. They are an independent nation to be respected in the global community.
www.bbc.com/news/article...
www.bbc.com/news/article...
Time to wake up and smell the coffee. The US is an aggressive military state with no respect for the rule of law.
What sort of country kidnaps foreign leaders and charges them with fabricated crimes, or threatens to invade their neighbors if they don't surrender land?
www.bbc.com/news/article...
What sort of country kidnaps foreign leaders and charges them with fabricated crimes, or threatens to invade their neighbors if they don't surrender land?
www.bbc.com/news/article...
US discussing options to acquire Greenland, including use of military - White House
It came as European allies rallied behind Denmark after renewed US insistence it must have Greenland.
www.bbc.com
January 7, 2026 at 1:09 AM
Time to wake up and smell the coffee. The US is an aggressive military state with no respect for the rule of law.
What sort of country kidnaps foreign leaders and charges them with fabricated crimes, or threatens to invade their neighbors if they don't surrender land?
www.bbc.com/news/article...
What sort of country kidnaps foreign leaders and charges them with fabricated crimes, or threatens to invade their neighbors if they don't surrender land?
www.bbc.com/news/article...
When the west bangs on about freedom and democracy, the east hears hypocrisy, double-standards and civil disasters in the making.
"America's record of achieving regime change by force in the last 30 years is disastrous."
www.bbc.com/news/article...
"America's record of achieving regime change by force in the last 30 years is disastrous."
www.bbc.com/news/article...
Trump's Maduro raid could set precedent for authoritarian powers across globe
Trump seems to believe he makes the rules and others cannot have the same privileges.
www.bbc.com
January 5, 2026 at 12:37 AM
When the west bangs on about freedom and democracy, the east hears hypocrisy, double-standards and civil disasters in the making.
"America's record of achieving regime change by force in the last 30 years is disastrous."
www.bbc.com/news/article...
"America's record of achieving regime change by force in the last 30 years is disastrous."
www.bbc.com/news/article...
Reposted by Mark Hopwood
My Christmas present this year. A painting of the RV Tangaroa in the Ross Sea Antarctica by Alfred Memelink memelink.nz. Anyone have nice paintings or artwork of research vessels in beautiful places? 🌊🚢 please share.
December 25, 2025 at 1:03 AM
My Christmas present this year. A painting of the RV Tangaroa in the Ross Sea Antarctica by Alfred Memelink memelink.nz. Anyone have nice paintings or artwork of research vessels in beautiful places? 🌊🚢 please share.
It may not be a holiday in China, but the research group went for "traditional" KTV (Karaoke) after dinner anyway 🎄🎅🎁
December 24, 2025 at 1:43 AM
It may not be a holiday in China, but the research group went for "traditional" KTV (Karaoke) after dinner anyway 🎄🎅🎁
Finished -what I hope😅- is my last #peerreview for 2025
The number I get asked to do keeps going up. In 2025 I finished 30 reviews which is about as many as I can accept. Curiously, either I got kinder or Editors are sending me better drafts (or maybe both!)- only 3 recommended rejections this year
The number I get asked to do keeps going up. In 2025 I finished 30 reviews which is about as many as I can accept. Curiously, either I got kinder or Editors are sending me better drafts (or maybe both!)- only 3 recommended rejections this year
December 23, 2025 at 2:58 AM
Finished -what I hope😅- is my last #peerreview for 2025
The number I get asked to do keeps going up. In 2025 I finished 30 reviews which is about as many as I can accept. Curiously, either I got kinder or Editors are sending me better drafts (or maybe both!)- only 3 recommended rejections this year
The number I get asked to do keeps going up. In 2025 I finished 30 reviews which is about as many as I can accept. Curiously, either I got kinder or Editors are sending me better drafts (or maybe both!)- only 3 recommended rejections this year
Getting students to fill in their end of course evaluations...🤔
A little cake moves things along much faster than weeks of badgering emails, from 29% to 96% completion in an hour 😆
#Academicchat
A little cake moves things along much faster than weeks of badgering emails, from 29% to 96% completion in an hour 😆
#Academicchat
December 23, 2025 at 1:32 AM
Getting students to fill in their end of course evaluations...🤔
A little cake moves things along much faster than weeks of badgering emails, from 29% to 96% completion in an hour 😆
#Academicchat
A little cake moves things along much faster than weeks of badgering emails, from 29% to 96% completion in an hour 😆
#Academicchat
Reposted by Mark Hopwood
#OnThisDay in 1872, the expedition of HMS Challenger set sail from Portsmouth, travelling nearly 70,00 nautical miles and cataloguing over 4000 unknown species over 4 years. This pioneering expedition, organised by the Royal Society, laid the foundations of oceanography.
December 21, 2025 at 12:43 PM
#OnThisDay in 1872, the expedition of HMS Challenger set sail from Portsmouth, travelling nearly 70,00 nautical miles and cataloguing over 4000 unknown species over 4 years. This pioneering expedition, organised by the Royal Society, laid the foundations of oceanography.
The Arctic is sparsely populated but still functions as a sink for a large amount of the Pb humans have released into the environment. Atlantic water doesn't only carry heat into the Arctic, but also Pb from European/American industry @geotraces.bsky.social 🌊
www.nature.com/articles/s41...
www.nature.com/articles/s41...
The Arctic Ocean is a net sink for anthropogenic lead deposited into the Atlantic Ocean - Nature Communications
Humans released millions of tons of toxic Pb into the air. The authors show that the Arctic Ocean is a sink for Pb emissions in North America and Eurasia that deposited into the North Atlantic Ocean l...
www.nature.com
December 19, 2025 at 1:00 AM
The Arctic is sparsely populated but still functions as a sink for a large amount of the Pb humans have released into the environment. Atlantic water doesn't only carry heat into the Arctic, but also Pb from European/American industry @geotraces.bsky.social 🌊
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Mark Hopwood
The 2025 #Arctic Report Card is out! #AGU25 🧪🌊🦑🐻❄️
Check out the executive summary by the editors M.L. Drunkenmiller, R.L. Thoman, and T.A. Moon. @alaskawx.bsky.social
arctic.noaa.gov/report-card/...
Check out the executive summary by the editors M.L. Drunkenmiller, R.L. Thoman, and T.A. Moon. @alaskawx.bsky.social
arctic.noaa.gov/report-card/...
Executive Summary - NOAA Arctic
DOI: 10.25923/nrzf-j897 M. L. Druckenmiller1, R. L. Thoman2,3, and T. A. Moon1 1National Snow and Ice Data Center, Cooperative Institute for Research in Environmental Sciences, University of Colorado ...
arctic.noaa.gov
December 16, 2025 at 7:36 PM
The 2025 #Arctic Report Card is out! #AGU25 🧪🌊🦑🐻❄️
Check out the executive summary by the editors M.L. Drunkenmiller, R.L. Thoman, and T.A. Moon. @alaskawx.bsky.social
arctic.noaa.gov/report-card/...
Check out the executive summary by the editors M.L. Drunkenmiller, R.L. Thoman, and T.A. Moon. @alaskawx.bsky.social
arctic.noaa.gov/report-card/...
I'm not the most creative person 😅, but fortunately some of our students are and they made our working group a new logo and a fantastic webpage with all our projects and research areas 🐻❄️ 🐧 🐳 🌎
www.hopwood-marine-science.com
www.hopwood-marine-science.com
Hopwood Marine Science
www.hopwood-marine-science.com
December 16, 2025 at 4:26 AM
I'm not the most creative person 😅, but fortunately some of our students are and they made our working group a new logo and a fantastic webpage with all our projects and research areas 🐻❄️ 🐧 🐳 🌎
www.hopwood-marine-science.com
www.hopwood-marine-science.com
Reposted by Mark Hopwood
Greenland's fjords are pathways for exchange of heat and freshwater between the continental shelf and outlet glaciers of the Greenland Ice Sheet. Vries et al., present year-round water column velocity observations for Nuup Kangerlua in SW Greenland 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
December 14, 2025 at 6:02 AM
Greenland's fjords are pathways for exchange of heat and freshwater between the continental shelf and outlet glaciers of the Greenland Ice Sheet. Vries et al., present year-round water column velocity observations for Nuup Kangerlua in SW Greenland 🌊
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
It's well known meltwater has some peculiar effects in the ocean, but we're always happy to find a few more! Ambient conditions are very different in Greenland & Antarctica, but curiously in both cases we see short-term negative responses of plankton to meltwater 🌊
online.ucpress.edu/elementa/art...
online.ucpress.edu/elementa/art...
December 13, 2025 at 6:31 AM
It's well known meltwater has some peculiar effects in the ocean, but we're always happy to find a few more! Ambient conditions are very different in Greenland & Antarctica, but curiously in both cases we see short-term negative responses of plankton to meltwater 🌊
online.ucpress.edu/elementa/art...
online.ucpress.edu/elementa/art...
Reposted by Mark Hopwood
Fun day poking around with a bunch of weedy sea dragons. Lucky me! #WeedySeaDragon #MarineLife #UnderwaterPhotography #PortseaPier
December 11, 2025 at 7:19 AM
Fun day poking around with a bunch of weedy sea dragons. Lucky me! #WeedySeaDragon #MarineLife #UnderwaterPhotography #PortseaPier
Reposted by Mark Hopwood
December 10, 2025 at 9:23 PM
Reposted by Mark Hopwood
Some of Nicolas Horniblow’s most profound experiences happen on night dives. Once the light drops, the reef shifts. Species that hide during the day move out, and the whole community runs on a different rhythm.
greatsouthernreef.com/nicolas-horn...
greatsouthernreef.com/nicolas-horn...
December 10, 2025 at 9:53 PM
Some of Nicolas Horniblow’s most profound experiences happen on night dives. Once the light drops, the reef shifts. Species that hide during the day move out, and the whole community runs on a different rhythm.
greatsouthernreef.com/nicolas-horn...
greatsouthernreef.com/nicolas-horn...