IPSO - International Programme on the State of the Ocean
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IPSO - International Programme on the State of the Ocean
@oceanipso.bsky.social
Bridging Science and Policy for a Healthy Ocean 🌊 https://stateoftheocean.org
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🦋 For those new to BlueSky, let us introduce ourselves:

The International Programme on the State of the Ocean (IPSO) brings together science, communications, policy, and legal disciplines to drive ocean solutions.
Reposted by IPSO - International Programme on the State of the Ocean
Antarctica’s melt affects everybody but won’t hit every coastline the same.

New maps show where seas could rise the fastest, and why millions of coastal residents should pay attention now 🌊
Sea level doesn’t rise at the same rate everywhere – we mapped where Antarctica’s ice melt would have the biggest impact
Understanding what happens to Antarctica’s ice matters, because as it melts, sea levels rise, affecting lives and economies around the world.
buff.ly
November 26, 2025 at 7:48 AM
Reposted by IPSO - International Programme on the State of the Ocean
2025 is the International Year of Glaciers’ Preservation.

Authors call for urgent, collaborative action to preserve glaciers, highlighting their scientific, cultural and spiritual importance, urging integration of traditional knowledge into climate efforts. #Glaciers2025 #IYGP2025
Reflections on United Nations’ Decade of Action for Cryospheric Sciences and International Year of Glaciers’ Preservation
journals.plos.org
November 26, 2025 at 8:22 AM
Reposted by IPSO - International Programme on the State of the Ocean
#CITESCoP20 opens today in Samarkand, a key moment for ensuring wildlife use is sustainable, legal and safe.

Progress here is essential for achieving Target 5 of the #KMGBF and protecting species and communities that depend on them.
November 24, 2025 at 9:15 PM
Remember the 2007–2008 breakups of the Wilkins and Voyeykov shelves in #Antarctica?

A study reveals that large-scale calving events in Antarctic ice shelves are preceded by prolonged amplifications in flexural stress, driven by ocean swell and reduced sea-ice barriers.
Large-scale ice-shelf calving events follow prolonged amplifications in flexure - Nature Geoscience
The loss of sea ice enhances swell-induced flexural stress in Antarctic ice shelves before large-scale calving events, according to satellite observations and swell-induced flexural stress modelling.
www.nature.com
November 25, 2025 at 4:12 PM
🪸 #CoralReefs can help reconstruct continuous #SeaLevelRise.

Scientists found corals in the central Indian Ocean recording sea-level rise from 1930 to 2019 and showing an acceleration mid-century.

https://www.nature.com/articles/s41467-025-60972-2
Coral growth records 20th Century sea-level acceleration and climatic variability in the Indian Ocean - Nature Communications
A 90-year sea level record (1930-2019) is constructed from the growth of a tropical coral and reveals a marked acceleration in sea-level rise in the central Indian Ocean beginning in 1959 (3.44 ± 0.68...
www.nature.com
November 24, 2025 at 7:14 PM
#IllegalFishing detection is low across Chile’s fisheries supply chains.

A study finds that targeting upper-chain actors like processors improves detection and recommends smarter enforcement strategies to strengthen fisheries sustainability. #WorldFisheriesDay
Improving detectability of illegal fishing activities across supply chains - npj Ocean Sustainability
npj Ocean Sustainability - Improving detectability of illegal fishing activities across supply chains
www.nature.com
November 21, 2025 at 3:49 PM
A weakened #AMOC could trigger #SouthernOcean warming and reduce Antarctic sea ice within decades.

Model results show regionally significant changes, driven by increased heat transport and a new tropical–Antarctic atmospheric link. @bas.ac.uk
A Weakened AMOC Could Cause Southern Ocean Temperature and Sea‐Ice Change on Multidecadal Timescales
We present the first CMIP6 multi-model intercomparison of Atlantic meridional overturning circulation weakening impacts on Southern Ocean (SO) temperatures and sea ice Increased southwards heat t...
agupubs.onlinelibrary.wiley.com
November 20, 2025 at 4:48 PM
Reposted by IPSO - International Programme on the State of the Ocean
If we don't rapidly phase out fossil fuels, we can say goodbye to coral reefs, the Greenland and Antarctic icesheets, and permafrost. The results will not be pretty.
3 massive changes you'll see as the climate careens toward tipping points
Scientists are increasingly concerned that the planet is headed for massive, irreversible changes due to global warming. In some cases, those changes have already begun.
www.npr.org
November 19, 2025 at 3:42 PM
Reposted by IPSO - International Programme on the State of the Ocean
At #COP30, the ocean community is coming together under #WaveForward: The Blue Thread at COP30, a shared effort to keep the ocean at the 💙 of the Action Agenda.

Learn more through the Wave Forward Voices series:
@ocean-climate.bsky.social
Wave Forward Voices: Ocean Insights from COP30
Ocean leaders share insights from COP30 in Belém through the Wave Forward Voices series highlighting ocean-based solutions for climate action.
www.oceanprotect.org
November 17, 2025 at 5:15 PM
🐢Sea turtle habitats are shifting due to #ClimateChange, with over 50% of hotspots projected to disappear by 2050.

Many new habitats will emerge in high-traffic shipping areas, yet only 23% are currently protected in #MPAs. @ulbruxelles.bsky.social
https://www.science.org/doi/10.1126/sciadv.adw4495
Climate change redefines sea turtle hotspots: Vessel strike risks and gaps in protected areas
As oceans warm, sea turtles flee the tropics, straight into the path of global maritime traffic.
www.science.org
November 19, 2025 at 9:21 PM
Tracking progress. Strengthening accountability. Driving action.

The new Ocean Breakthroughs Dashboard shows how ocean-based solutions are advancing, from renewable energy and shipping to blue food and conservation.

🌐 https://ocean-breakthroughs.org/dashboard/
#WaveForward
November 18, 2025 at 4:09 PM
⚠️ Fastest glacier retreat in history: Hektoria Glacier in the Antarctic retreated 25 km in 14 months after losing protective fast ice.

This fact reveals a new instability mechanism that may threaten other glaciers & accelerate #SeaLevelRise.
@drnaomio.bsky.social
@hannah-richter.bsky.social
Antarctic glacier shows fastest retreat in modern history
Tides and glacial earthquakes caused record ice loss at Hektoria Glacier
www.science.org
November 17, 2025 at 7:09 PM
Reposted by IPSO - International Programme on the State of the Ocean
The deep ocean is an enormous, natural carbon sink, storing massive amounts of carbon that would otherwise be in the atmosphere. Yet it can only continue to perform this critical role if it is healthy.

As #COP30 wakes into Ocean Day, we shout loud and clear: climate action starts with the deep.
November 17, 2025 at 10:38 AM
Reposted by IPSO - International Programme on the State of the Ocean
Did you know that November is #ManateeAwarenessMonth? 🌊

Dive in and learn 9 facts that will lead you to an even greater appreciation for our ocean's beloved sea cows! 🐮

🔗 https://bit.ly/3LHZuqS
November 16, 2025 at 6:24 PM
🌊 At #COP30, the ocean is our greatest ally in tackling climate change.

The Ocean Breakthroughs chart a clear course for action, 5 tipping points across marine conservation, renewable energy, shipping, aquatic food, & coastal tourism that could deliver up to 35% of the emission cuts needed by 2050.
November 14, 2025 at 4:09 PM
Reposted by IPSO - International Programme on the State of the Ocean
The Government of Iceland declared that the danger of the Amoc ocean current system collapsing poses a national security risk and existential threat.

This is the first time a climate phenomenon has been formally brought before the Icelandic National Security Council as a possible existential threat
Island erklærer havstrøm-kollaps nasjonal sikkerhetsrisiko
Den islandske regjeringen har erklært at faren for at havstrømssystemet Amoc kan bryte sammen utgjør en nasjonal sikkerhetsrisiko og eksistensiell trussel. Det gjør at landet kan planlegge for et vers...
www.nrk.no
November 14, 2025 at 7:00 AM
🌱 Kelp forests and seagrass beds off Nova Scotia don’t just trap carbon, they also export it offshore, shaping how the ocean stores #BlueCarbon.

These findings inform blue carbon accounting and climate strategies, and emphasise the importance of these ecosystems for climate regulation. #CCS
Pathways of blue carbon export from kelp and seagrass beds along the Atlantic coast of Nova Scotia
Kelp and seagrass beds rapidly export dissolved organic carbon to deep waters, where it contributes to ocean carbon sequestration.
www.science.org
November 13, 2025 at 4:11 PM
Reposted by IPSO - International Programme on the State of the Ocean
Are you an oceanographer or marine biologist with an interest in marine biodiversity and climate change? Our upcoming scientific meeting will look at #ClimateChange and #BiodiversityLoss linkages in ocean ecosystems:

royalsociety.org/science-even...
November 13, 2025 at 11:52 AM
🤯Crocodile icefish in Patagonia? New study finds 93% of marine species are living in places & conditions we didn’t know about.

Improving monitoring (especially with eDNA) is vital for effective conservation & predicting how marine life will respond to change.
@plosbiology.org @sciencex.bsky.social
Marine DNA exposes massive gaps in ocean maps and finds fish in unexpected places
Scientists have taken an unprecedented look at marine fish species living in the world's oceans by studying traces of genetic material in seawater. One of the most surprising results was discovering s...
phys.org
November 12, 2025 at 9:21 PM
🪸 Mauritius hosts nearly 250 coral species, but in March 2025 roughly 80% of its corals were bleached.

The government is now shifting its restoration strategy, but even the best restoration efforts may struggle to keep up with rapidly increasing threats like warming, acidification and pollution.
Mauritius rethinks coral restoration as reefs suffer from another mass bleaching
PORT LOUIS, Mauritius — Seeing coral reefs can color one’s monochrome view of the ocean forever. In the pink of health — and red, blue, green and purple — corals resemble underwater fireworks, forming...
news.mongabay.com
November 11, 2025 at 3:52 PM
Reposted by IPSO - International Programme on the State of the Ocean
Rockström
"Holding on to 1.5°C is not a goal or target.
It is a limit, a #PlanetaryBoundary

Above 1.5°C we enter, with high certainty, the terrain of dangerous #ClimateChange.
() we have to do everything we can to limit warming below 1.5°C, even if we temporarily exceed it in a period of overshoot"
November 11, 2025 at 11:02 AM
Ancient coral fossils from the Seychelles have unveiled a dramatic warning for our future: sea levels can rise in sudden, sharp bursts even when global temperatures stay steady.

Full study authored by @uwiscpress.bsky.social:
https://www.sciencedaily.com/releases/2025/06/250623233210.htm
123,000-year-old coral fossils warn of sudden, catastrophic sea-level rise
Ancient coral fossils from the remote Seychelles islands have unveiled a dramatic warning for our future—sea levels can rise in sudden, sharp bursts even when global temperatures stay steady.
www.sciencedaily.com
November 10, 2025 at 6:52 PM
Where should #marinebiodiversity data collection be prioritised?

Global records show deep, southern and offshore regions, plus invertebrate groups, as top priorities for new sampling to support fair and effective ocean management. https://www.nature.com/articles/s43247-025-02442-7
Prioritisation of ocean biodiversity data collection to deliver a sustainable ocean - Communications Earth & Environment
Large spatial and taxonomic biases exist in ocean ecological datasets, with shallow depths, the northern hemisphere, and vertebrate species being favoured, according to a critical gap analysis of open...
www.nature.com
November 7, 2025 at 3:46 PM
❇️ Phytoplankton abundance and ocean greenness have declined globally since 2001, especially in coastal and tropical waters.

As warming strengthens stratification and limits nutrient supply, marine productivity is falling, threatening carbon uptake and the foundation of ocean food webs.
Earth’s Oceans Lose Some of Their Luster - Inside Climate News
New research reveals that a key biological carbon pump is weakening, threatening ecosystems and the climate.
insideclimatenews.org
November 6, 2025 at 3:46 PM
🪸 Global #CoralReefs face near-inevitable decline as #OceanWarming pushes bleaching beyond recovery thresholds.

Even under optimistic climate scenarios, widespread degradation is expected by 2100, underscoring the urgency of combining emission cuts with targeted reef resilience strategies.
Coral Reefs Face Inevitable Decline from Climate Change
As climate change continues to unfold with alarming rapidity, its impacts resonate across the globe, leaving no ecosystem untouched. One of the most devastated environments is underwater ecosystems,
scienmag.com
November 5, 2025 at 9:23 PM