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Reposted by Mark Hopwood

Sam Burgess @oceanterra.org · 1d

ClimatePulse has been updated!

Still with @copernicusecmwf.bsky.social #ERA5 and two days behind real time. New layout, with better maps, easier to display different regions and compare different years data.

Let us know if you have feedback for future updates 🌏🌊⚒️🧪🌡️

Check it out 👇

Climate Pulse

Near-real time updates of key global climate variables from the the Copernicus Climate Change Service (C3S).

pulse.climate.copernicus.eu

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Mark Hopwood @markinchina.bsky.social · 3d

Freedom of speech:

In the US & UK it's ok to say "I support the murder of 20,000 kids, starvation as a weapon of war against 2 million in #Gaza and an apartheid state"

But it's illegal to boycott Israel for crimes against humanity or support Palestine Action.

english.palinfo.com/news/2025/09...

One child killed every hour, Israel’s war on Gaza has killed 20,000 children

Save the Children organization confirmed that the number of children killed in the Gaza Strip has exceeded 20,000 since the start of Israel’s genocidal war on the enclave nearly two years ago.

english.palinfo.com

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Reposted by Mark Hopwood

Schmidt Ocean Institute @schmidtocean.bsky.social · 12d

Do you ever feel like somebody's watching you? This goosefish — with a wide, flat head, gaping mouth, and an abundance of patience — belongs to the family Lophiidae, which are ray-finned fishes belonging to the order Lophiiformes, the anglerfishes. #uruguaysub200

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Reposted by Mark Hopwood

Southern Ocean Observing System (SOOS) @soosocean.bsky.social · 16d

📰 SOOS WAPSA RWG Newsletter
Discover the latest from the West Antarctic Peninsula & Scotia Arc!
❄️ POLOMINTS expedition: ice–ocean interactions
🦐 Krill & phytoplankton dynamics
🌊 Water mass transport in Bransfield Strait
Meet the researchers & explore new insights: buff.ly/avTSltp

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Reposted by Mark Hopwood

Exeter Marine @exetermarine.bsky.social · 17d

HAVE YOUR SAY!
The government is considering a ban on bottom trawling in 41 MPAs designated to protect the seabed. This is a pivotal moment for conservation of our seas, but it won’t happen unless we all speak up.

Respond by 29th September - action.wildlifetrusts.org/page/171084/...

🦑🐟🌊🧪🎣

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Reposted by Mark Hopwood

Coastal and Estuarine Research Federation @cerfscience.bsky.social · 17d

🌊 It’s National Estuaries Week! From September 20-27, help us celebrate the beauty, value, and wonder of #estuaries! Share what you love about estuaries all week long! 🌊 #EstuariesWeek #WadeIn

Photo collage. Center: Salt marsh with National Estuaries Week text. Clockwise from upper left: Birds flying, mesh bags with oyster shells, two kayaks, person standing in water measuring depth, an egret in a marsh, three people sorting oyster shells, people in a marsh with an airboat

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Mark Hopwood @markinchina.bsky.social · 18d

🕊️ Today is the International Day of Peace, yet another 28 children will be killed in #Gaza; bombed, starved and denied medical care.

What level of horror must they continue to endure? How long will the USA continue to block the UN intervening in Israel's #genocide?

www.un.org/en/delegate/...

21 September is the International Day of Peace | United Nations

In a time of turbulence, tumult, and uncertainty, it is critical for everyone to take concrete action to mobilize for peace.

www.un.org

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Reposted by Mark Hopwood

Eos @eos.org · 27d

Underwater barriers might slow warm currents from melting Greenland’s glaciers, but not without hurting fisheries, @markinchina.bsky.social and colleagues point out in a recent commentary. eos.org/research-spo...

Underwater Glacier-Guarding Walls Could Have Unintended Consequences - Eos

Although they would likely impede the warm currents that melt glaciers, such walls would also likely block fish migration and nutrient upwelling, harming marine ecosystems and Greenland fisheries.

eos.org

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Mark Hopwood @markinchina.bsky.social · 29d

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

Police arresting an elderly lady under terror legislation for holding a sign supporting Palestine Action

An elderly priest, twice arrested under terror legislation for supporting Palestine Action

Police drag an elderly lady off the streets citing terror legislation after she held a piece of paper supporting Palestine Action

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Mark Hopwood @markinchina.bsky.social · Sep 3

"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 🌊 🐠

Putting up a sunscreen over large aquaculture ponds

Using beer kegs to make an indoor incubation facility

Students taking a break from lining aquaculture ponds to make them water tight

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Reposted by Mark Hopwood

Jan Mees @janmees.bsky.social · Sep 2

New paper in Nature Climate Change, with Peter Landschützer of VLIZ. The ocean carbon sink is ailing: during the record 2023 marine heatwave, the ocean absorbed ~1 Gt less CO₂ ≈ half of the EU’s annual emissions www.vliz.be/en/news/ocea...

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Reposted by Mark Hopwood

Dr. Dawn Wright @deepseadawn.bsky.social · Sep 1

Just finished a LEGO build Shackleton’s Endurance. The discovery of the 1915 wreck in the Antarctic in 2022, was only a few months before Victor Vescovo took me to Challenger Deep in the W. Pacific AND with a sidescan sonar similar to what helped find the Endurance!!
🌊🌎🌏
(Riley🐶 totally “onboard”😉)

Watching Disney+ documentary while building

Riley the golden retriever watches the action

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Reposted by Mark Hopwood

Steph Henson @stephhenson.bsky.social · Aug 27

🌊 I’m hiring! Last few days to apply!! Research Scientist in Marine Ecology & Machine Learning at the National Oceanography Centre, Southampton (UK). Got experience with machine learning techniques applied to marine ecology, biogeochemistry or climate change? careers.noc.ac.uk/vacancy/rese...

careers.noc.ac.uk

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Mark Hopwood @markinchina.bsky.social · Aug 27

"iron fertilization is the only ocean approach that survives the gigaton test"...

I don't think there are many biogeochemists who would agree with this framing, irrespective of their overall thoughts on marine Carbon Dioxide Removal prospects 🌊

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Reposted by Mark Hopwood

Jean-Pierre Gattuso @jpgattuso.bsky.social · Aug 27

A disaster for ocean and climate research is unfolding before our eyes. #NOAA 🌊
"The White House Office of Management and Budget is pulling back $239 million in funds Congress already provided. The biggest hits fall on climate and ocean research."
oceanpolicy.substack.com/p/roundup-un...

Roundup: Unobligated but Not Unnoticed: OMB Pulls Back NOAA Funds

August 12-26, 2025

oceanpolicy.substack.com

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Mark Hopwood @markinchina.bsky.social · Aug 26

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...

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Reposted by Mark Hopwood

JGR: Oceans @jgroceans.bsky.social · Aug 26

Greenland's fjords are the gateways via which the ice sheet interacts with the open ocean. A large fraction of all the ice calved from the ice sheet melts within these regions. Kinne et al., explore how all this melt affects fjord circulation 🌊 🐻‍❄️

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Bathymetry of Sermilik showing the major currents and a satellite image of the region showing large icebergs scattered around the fjord

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Reposted by Mark Hopwood

Joseph D. Ortiz @earthsciinfo.bsky.social · Aug 22

There was a hint in 2024 that China's Carbon emissions had peaked due to their massive roll out of renewables, which continues. Now the data from the first half of 2025 confirms that CO2 emissions in China are decreasing. 🧪🔌💡☀️💨🌊🔋

CO2 emissions in China have decreased from a peak in March 2024 to June 2025. The reduction is due to the deployment of massive amounts of renewable capacity, particularly solar PV.

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Mark Hopwood @markinchina.bsky.social · Aug 21

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 🌊 🐻‍❄️ 🐧 🐳

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Mark Hopwood @markinchina.bsky.social · Aug 21

Many western scientific networks are overly centered on the US. In previous decades it could be claimed that this was because the US represented a Gold Standard in scientific research. But the world has changed, and this is no longer the case.

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

The Executive Order “Restoring Gold Standard Science” is Dangerous for America

This EO is an unconstitutional attempt to censor and punish U.S. scientists for publishing science that doesn't fit a political agenda This misleading and false misrepresentation of U.S. scientif...

agupubs.onlinelibrary.wiley.com

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Mark Hopwood @markinchina.bsky.social · Aug 20

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Glacier Geoengineering May Have Unintended Consequences for Marine Ecosystems and Fisheries

Proposed geoengineering schemes to mitigate sea level rise include artificial sills/curtains to restrict flow of warm water toward glaciers Field observations and representative models for Ilulis...

agupubs.onlinelibrary.wiley.com

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Mark Hopwood @markinchina.bsky.social · Aug 20

agupubs.onlinelibrary.wiley.com/doi/10.1029/...

Glacier Geoengineering May Have Unintended Consequences for Marine Ecosystems and Fisheries

Proposed geoengineering schemes to mitigate sea level rise include artificial sills/curtains to restrict flow of warm water toward glaciers Field observations and representative models for Ilulis...

agupubs.onlinelibrary.wiley.com

Mark Hopwood @markinchina.bsky.social · Aug 20

Are technological fixes to climate change better 'solutions' than doing nothing?

This narrow framing ignores complex ecological risks & the undermining of climate action.

A more realistic framing is that geoengineering 'solutions' at best partially mitigate one problem by creating more risks 🌊 🐳 🧊

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Mark Hopwood @markinchina.bsky.social · Aug 20

At high school, our English teacher challenged us to make a new word and get it used. Unfortunately, my homework is late; overdue by 22 years. But happy to submit my effort in print today:

"Geoengineeringization" - the increasing popularization of geoengineering as a topic of scientific research

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Reposted by Mark Hopwood

David Ho @davidho.bsky.social · Aug 19

This photo of a humpback whale entangled in fishing gear*. 🥺

It's shameful that the global plastic pollution treaty went nowhere.

*from Oceanographic Magazine's Ocean Photographer of the Year competition. 🌊

www.theatlantic.com/photography/...

A humpback whale swimming underwater, partially submerged in clear blue water. The whale is entangled in fishing gear

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