Key points on #OceanAcidification and marine carbon dioxide removal. #mCDR

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HOW DO OCEAN AND COASTAL ACIDIFICATION DIFFER? Understanding the differences between ocean acidification and coastal acidification helps explain how global climate change and local stressors interact to alter seawater chemistry. The more clearly we distinguish these processes, the better we can design targeted monitoring, mitigation, and adaptation responses.

Check out the new materials from the International #OceanAcidification Alliance. 🧪🌊🦑

www.oaalliance.org/posters

We had a great workshop discussing technical operations to monitor #OceanAcidification! 🧪🌊🦑 #FieldworkFriday #AlaskaSky

Thank you to our partners! Dakunalytics, Sitka Tribe of Alaska, Alutiiq Pride Marine Institute, @uafairbanks.bsky.social and @aoos-alaska.bsky.social 🙌

Don't miss the @usocb.bsky.social highlight on the new ocean carbonate chemistry data product led by Liqing Jiang. #OceanAcidification 🧪🌊🦑

**Ocean Acidification: Our Seas Are Turning to Acid**

The ocean is 30% more acidic than 150 years ago. Coral reefs & shellfish are dissolving. We must act NOW before marine life disappears.

#OceanAcidification #ClimateAction #SaveOurSeas

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Heat-tolerant corals may help some reefs persist, but most still erode A recent report on global tipping points warned that coral reefs face widespread dieback and have reached a point from which they cannot recover.

CORAL REEF RESEARCH FEATURE: Heat-tolerant corals may help some reefs persist, but most still erode

Read full review here: phys.org/news/2026-03...

#coralreefs #coralresearch #coralreefnews #climatechange #coralhealth #coralreefecology #coralbleaching #oceanacidification #marinebiology

youtu.be/lyMCxVZYVEc?...

#NationalShellMuseum

#mollusk #preserveandprotect #carbon #oceanacidification #shells

Volunteers planting seedlings in a mangrove restoration

Our natural solution is mangroves; mangrove roots are known to increase the pH (alkalinity) in adjacent tropical waters— through biogeochemical cycling—therefore organically mitigating for ocean acidification. #WetTribe #TidetotheOcean #OceanAcidification #Mangroves #BlueCarbon

Research UAV glider

Research ship and buoy

Water sampling rosette on deck

WHOI is conducting a field trial in the Gulf of Maine to mitigate Ocean Acidification by adding small amounts of sodium hydroxide into the ocean to fight climate change. #WetTribe #TidetotheOcean #FridayFieldUpdate #FridaysforFuture #ClimateChange #OceanAcidification

Woods Hole Research Vessel

A small-scale research trial has revealed promising provisional results from an experiment of ocean alkalinity enhancement (OAE) in an open marine environment. #WetTribe #TidetotheOcean #FridayFieldUpdate #FridaysforFuture #ClimateChange #OceanAcidification

Coral reef dissolving from ocean acidification

#OceanAcidification, the “evil twin” of #ClimateChange, is a direct consequence of excess atmospheric #CO2 dissolving into oceans—a "one-two-punch"—dissolving #Coral skeletons, inhibiting growth, and causing reef destruction. #WetTribe #TidetotheOcean #FridayFieldUpdate

PhD OPPORTUNITY: Developing and testing new sensors for characterising ocean carbon dioxide uptake (University of Southampton, UK)

Learn more here: www.findaphd.com/phds/project...

#phdopportunity #careers #research #marinescience #coralreefs #coral #oceanacidification #carbonsink #marinebiology

A large blue buoy sits in the University of Alaska Fairbanks Seward Marine Center warehouse.

The Gulf of Alaska #OceanAcidification buoy has a fresh coat of paint. #GAKOA #MooringMonday 🧪🌊🦑🛟👩🏻‍🎨

A yellow surface buoy sits in the University of Alaska Fairbanks Seward Marine Center before being painted.

We are preparing the Gulf of Alaska #OceanAcidification buoy for a turnaround next week. 🧪🌊🦑🛟 #GAKOA #FieldworkFriday

cicoes.uw.edu/2024/04/13/p...

#OceanAcidification may be the worst part of the #GlobalClimateCrisis

Tthe whole planet is being thrown into hundreds/thousands of years of environmental chaos - caused by *us* - and failure to act means even more change & destruction.

A Birthday for GAKOA: Ten years of monitoring in the Gulf of Alaska - Alaska Ocean Acidification Network Alaska's longest continual ocean acidification mooring has been providing insights into ocean chemistry since 2013.

This week we are working out of the @uafairbanks.bsky.social Seward Marine Center to turnaround a mooring monitoring seawater carbon dioxide.

Check out the link below for #OceanAcidification #ThrowbackThursday.🧪🌊🦑

aoan.aoos.org/a-birthday-f...

Synthesis of data products for ocean carbonate chemistry Abstract. As the largest active carbon reservoir on Earth, the ocean is a cornerstone of the global carbon cycle, playing a pivotal role in modulating ocean health and the Earth's climate system. Unde...

🚨New paper! 🧪🌊🦑
Dr. Liqing Jiang led this synthesis of ocean carbonate chemistry. #OceanAcidification #mCDR @polarocean.bsky.social @jens-d-mueller.bsky.social @sivlauvset.bsky.social @jhauck.bsky.social @jpgattuso.bsky.social @oceancarbon.bsky.social

essd.copernicus.org/articles/18/...

Watch: Coastal and Ocean Acidification Data Webinar A collection of 240 new maps were recently added to the Portal showing monthly surface readings over five years for four parameters that are instrumental for determining acidification levels and event...

If you couldn’t make it to yesterday’s webinar covering the Portal’s #oceanacidification data, a recording is now online. Thanks to all who attended and our presenter, Dr. Janet Reiner of MACAN. 🧪🌊
portal.midatlanticocean.org/news/watch-c...

Helen is a leader & driving force in addressing the growing challenge of #OceanAcidification - often described as the equally "evil twin of #ClimateChange" or "the other #carbon problem" - which is already impacting marine life, food security & coastal communities worldwide.

BC OAH Forum 2026

We're a week away from the BC #OceanAcidification and #Hypoxia Action Forum in Nanaimo! This gathering will unite across sectors to reflect on progress made, and chart next steps for OAH initiatives in BC.

Online registration is still open!

Learn more:
www.oceanacidification.ca/bc-oah-forum...

Call for Abstracts – The Ocean in a High-CO2 World – 6th International Science Symposium Call for Abstracts The Call for Abstracts is now open. Please submit your abstract no later than 1 April 2026 (any time zone). Full submission guidelines

📢Abstract submission open!📢, 📆 until April 1st

Theme 2, Session 2: Ocean acidification in the Mediterranean Sea: variability, vulnerability, and pathways in a high-CO₂, multi-stress basin

highco2-vi.org/call-for-abs...

#HighCO2Symposium
#OceanAcidification
#GOAON #OAMedHub

OSM kicks off today in Glasgow! As a reminder, we have compiled a list of ocean acidification relevant talks and posters - newly updated since our last email! On Wednesday 25 February, ICONEC, the International Carbon Ocean Network for Early Career, is hosting a gathering at 18:30 at the Islay Inn. This is a great chance for early careers working on ocean carbon to network and meet others in the GOA-ON community!

@goa-on.bsky.social has a list of #OceanAcidification talks at #OSM26 🧪🌊🦑

goa-on.us20.list-manage.com/track/click?...

The Bering Sea shelf is a large marine ecosystem that supports critical commercial, cultural, and subsistence ecosystem services that are vulnerable to extreme events and anthropogenic stressors such as ocean acidification (OA). Previous work has developed a suite of model-based products simulating historical and future projected changes in aragonite saturation state (Ωarag) and pH for this region, however, forecasts on seasonal timeframes have remained a critical gap. Here, we use the ROMS Bering10K model to assess forecast skill in predicting surface and bottom water Ωarag and pH conditions on lead times from 1–9 months. We simulate 28 years (1982–2010) of 3-member ensemble retrospective forecasts, initialized both in April and May following the retreat of winter sea ice and several months in advance of when the most acidic bottom water conditions occur in late summer and early fall. We find that the model is skillful in forecasting shelf-wide anomalies in bottom water pH and Ωarag, however, this forecast skill is largely derived from strong persistence. Conversely, dynamic model forecasts for surface Ωarag and pH are more skillful than persistence forecasts, suggesting that the dynamic model is capturing physical-biogeochemical mechanisms governing spring-summer productivity. Forecast skill for finer-scale spatial anomalies is more limited, but is still strong in some subregions such as Bristol Bay, which is home to the iconic red king crab fishery. These model forecasts can provide several months advance notice for acidified water conditions and bolster a suite of ongoing products used to support evidence-based decisions for marine resource management.

Dr. Darren Pilcher is giving a poster at #OSM26. 🧪🌊🦑
Seasonal Forecasts of pH and Aragonite Saturation for the Bering Sea Shelf #OceanAcidification #Alaska

The coastal waters of Southeast Alaska are naturally susceptible to corrosive carbonate conditions. The region is caught between the high-CO2, high alkalinity waters of the North Pacific and high-CO2, low alkalinity glacial run-off from Alaskan and Canadian ice fields, producing strong gradients in marine influence and large differences in the chemistry of local watersheds and from fjord to fjord. Climate-change pressures from ocean acidification, warming waters, and increased glacial melt could expand corrosive conditions in space and time, leaving few refugia for shelled organisms. Coastal Alaska is also information poor, with few long-term carbonate monitoring stations or research cruise tracks. To evaluate and manage the threat of coastal acidification, a consortium of tribal governments in Southeast Alaska has been monitoring the carbonate chemistry in local communities since 2017. Here, we present these coastal observations for the first time, identify the seasonal and spatial variation in carbonate chemistry across Southeast Alaska, and develop a predictive model for local carbonate conditions that incorporates glacial influence, circulation patterns, biological productivity, and freshwater sources. We then map the vulnerability of communities to further coastal acidification and identify the primary drivers of future chemical change. This work highlights the efficacy and importance of community-based monitoring programs, produces a predictive model for local carbonate chemistry applicable to other complex glaciated fjord systems, and provides a framework for calculating and projecting community-scale coastal acidification risks and drivers.

Dr. Esther Kennedy is giving an #OSM26 talk! 🧪🌊🦑
Tribal management of coastal acidification risks across Southeast Alaskan fjords. #OceanAcidification #AlaskaSky @uafairbanks.bsky.social

seator.org

Here's another reason why #oceanacidification is problematic

"In sea urchin and salmon sperm, pH value regulates whether they remain immotile or swim"

Full article linked in quoted post below

share.google/DnHRt1cTRiPZ...

reports.weforum.org/docs/WEF_Oce... #blueeconomy #blueplanet #highseas #investment #lifesource #ocean #oceanacidification #oceaneconomy #sealevelrise #thermalexpansion

Excited to share our new paper on the state of #OceanAcidification knowledge in #Canada and pathways for action! Thanks to all our amazing coauthors and our community who continue to champion OA knowledge to action initiatives (such as the BC OAH Action Forum on March 3)!

Coral Reef Ecosystems - NOAA/AOML AOML's Coral Program investigates coral resilience in the presence of stressors like warming oceans, ocean acidification, and disease.

Job Alert 🚨
Paid internship for recent graduates to work on #OceanAcidification at NOAA's Coral Program in Miami

Contact Dr. Ana Palacio and Dr. Michael Studivan to apply by March 10, 2026. 🧪🌊🦑🪸

www.aoml.noaa.gov/coral-reef-e...

PHD OPPORTUNITY: Dissolution of cold-water corals in a changing ocean - Heriot-Watt University (School of Engineering & Physical Sciences)

Full details here: www.findaphd.com/phds/project...

#coralreefs #phd #careers #phdopportunity #oceanacidification #coral #coldwatercorals #climatechange

#OceanAcidification and Marine Carbon Dioxide Removal #mCDR webinar 🧪🌊🦑