#OADayofAction
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uaf-oarc-alaska.bsky.social
Learn more about #OceanAcidification in Alaska with this story map. 🧪🌊🦑 #OADayofAction

storymaps.arcgis.com/stories/8f14...
ALASKA'S CHANGING OCEAN
Exploring Ocean Acidification: Impacts and Response
storymaps.arcgis.com
January 7, 2026 at 5:52 PM
uaf-oarc-alaska.bsky.social
January eNews from the Alaska #OceanAcidification Network
🧪🌊🦑 #OADayofAction

mailchi.mp/aoos/oa-indi...
Screen shot of the January 2026 eNews from the Alaska Ocean Acidification Network. Picture of a king crab.
January 8, 2026 at 11:08 PM
uaf-oarc-alaska.bsky.social
#NOAA #OceanAcidification Program studies impacts of changing ocean chemistry and how to adapt. 🧪🌊🦑 #OADayofAction

Within the US 🇺🇸, an interagency working group brings federal agencies together for research and management of resources and ecosystems.

oceanacidification.noaa.gov
Home - NOAA Ocean Acidification Program
NOAA's Ocean Acidification Program prepares us for the impacts of ocean acidification through research and interdisciplinary partnerships.
oceanacidification.noaa.gov
January 6, 2026 at 6:01 PM
uaf-oarc-alaska.bsky.social
The ocean absorbs excess human emitted CO₂ from the atmosphere, and through a series of reactions, decreases seawater pH in a process known as #OceanAcidification. #OADayofAction 🧪🌊🦑

www.pmel.noaa.gov/co2/file/Haw...

📈 by #NOAA and UH Mānoa
Graph of the carbon dioxide time series in the North Pacific. Atmospheric (air) data are shown in read, monitored at Mauna Loa. Seawater carbon dioxide (pCO2) and pH are monitored at station ALOHA. Data are from the National Atmospheric Administration and the University of Hawaiʻi at Mānoa.
January 5, 2026 at 10:24 PM
uaf-oarc-alaska.bsky.social
Today on 8 January, the #OADayOfAction, we recognize the global surface ocean has an average pH of 8.1 - a 26% increase in acidity over the past 250 years.

#OceanAcidification occurs when the ocean absorbs excess CO₂ from the atmosphere, causing in a decrease in seawater pH. 🧪🌊🦑
Graph showing increasing atmospheric and surface seawater carbon, as well as decreasing surface seawater pH.
January 8, 2025 at 6:42 PM
uaf-oarc-alaska.bsky.social
Our data are publicly archived at the #NOAA Ocean Carbon and Acidification Data System #OCADS. 🧪🌊🦑 #OADayofAction

www.ncei.noaa.gov/products/oce...
Ocean Carbon and Acidification Data System (OCADS)
The Ocean Carbon and Acidification Data System (OCADS) is a data management system specializing in the management of ocean carbon and ocean acidification (OA) data within NCEI. See the OCADS Paper in ...
www.ncei.noaa.gov
January 9, 2026 at 6:27 PM
uaf-oarc-alaska.bsky.social
#OceanAcidification research is shared internationally through the Global OA Observing Network #GOAON @goa-on.bsky.social #OADayofAction 🧪🌊🦑🌐

www.goa-on.org/home.php
GOA-ON
Welcome to GOA-ON, the Global Ocean Acidification Observing Network
www.goa-on.org
January 6, 2026 at 6:01 PM
uaf-oarc-alaska.bsky.social
The Alaska #OceanAcidification Network is a one stop shop for new regional conditions, species response, recent news, and educations resources. #OADayofAction 🧪🌊🦑 @aoos-alaska.bsky.social

Sign up for the eNews, it is excellent!

aoan.aoos.org
Home - Alaska Ocean Acidification Network
The Alaska Ocean Acidification Network engages with scientists and stakeholders to expand the understanding of ocean acidification processes and consequences, as well as potential adaptation strategie...
aoan.aoos.org
January 7, 2026 at 5:52 PM
uaf-oarc-alaska.bsky.social
#OceanAcidification is a component of the United Nations Ocean Decade @unoceandecade.bsky.social #OADayofAction 🧪🌊🦑🌐

#OARS mission: Providing society with the evidence needed to sustainably identify, monitor, mitigate and adapt to OA; from local to global scales

oceandecade.org/actions/ocea...
Ocean Acidification Research for Sustainability (OARS) - Ocean Decade
OARS will foster development of the science of ocean acidification, including impacts on marine life and sustainability of marine ecosystems.
oceandecade.org
January 6, 2026 at 6:01 PM
uaf-oarc-alaska.bsky.social
Our research observes the marine carbonate chemistry around Alaska to determine the intensity, duration, and extent of #OceanAcidification. 🧪🌊🦑

The information is used by local, regional, national, and international decision makers. #OADayofAction

Learn more at aoan.aoos.org
International Ocean Acidification Day of Action flyer reads: Ocean Acidification is a global issue that requires local actions.
January 5, 2026 at 10:14 PM
uaf-oarc-alaska.bsky.social
"Ocean acidification has been identified in the Planetary Boundary Framework as a process approaching a boundary that could lead to unacceptable environmental change." Findlay et al., 2025

The #Arctic region, north of 65° N, has the highest % change. #OADayofAction 🧪🌊🦑

doi.org/10.1111/gcb....
Ocean Acidification planetary boundary. (a) Percentage (%) reduction between present day and pre-industrial aragonite saturation state for the surface global ocean and the seven ocean regions, also comparing to the Richardson et al. (2023) planetary boundary assessment (blue circle and blue line). The red circles represent the multi-model ensemble median with the associated propagated errors for the multi-model ensemble standard deviation and the pre-industrial uncertainties. The 20% boundary value is presented as the dark grey lines with their associated uncertainties shown by the light grey banding. Regions are defined as: Arctic Ocean (Arctic) region north of 65° N; north Pacific Ocean (Pacific-N) between 40° N and 65° N; north Atlantic Ocean (Atlantic-N) between 40° N and 65° N; central Pacific Ocean (Pacific-C) between 40° S and 40° N; central Atlantic Ocean (Atlantic-C) between 40° S and 40° N; Indian Ocean (Indian) between 40° S and 25° N; and the Southern Ocean (Southern) ocean south of 40° S. (b) Regional assessment of ocean acidification in year 2020, relative to the boundary of 20% reduction from pre-industrial aragonite saturation state, as in (a), with grey bars representing the boundary uncertainties, and colours depicting whether that boundary has been crossed (red) or not (green). (c) Map showing the percentage difference in surface ΩArag between pre-industrial (1750) and year 2020. The black contour line on the map represents a 20% reduction from pre-industrial values.
January 8, 2026 at 5:55 PM
meopar-oacop.bsky.social
Today is #OADayofAction held each year on Jan 8 to represent the current pH of the ocean (8.1). To celebrate, we're reflecting on Canada's participation in the OA events, actions, stories, and resources of 2025 from Canada and beyond! 👇

www.oceanacidification.ca/post/oa-day-...

#OceanAcidification
Ocean Acidification Day of Action Jan. 8, OA in Canada news and resources, oceanacidification.ca
January 8, 2026 at 5:02 PM
uaf-oarc-alaska.bsky.social
Learn more about #OceanAcidification around Alaska by signing up for the #Alaska OA Network eNews. 🧪🌊🦑 #OADayofAction

aoan.aoos.org
Home - Alaska Ocean Acidification Network
The Alaska Ocean Acidification Network engages with scientists and stakeholders to expand the understanding of ocean acidification processes and consequences, as well as potential adaptation strategie...
aoan.aoos.org
January 8, 2025 at 6:48 PM
systemsed.bsky.social
The current pH level of the ocean is 8.1. Hence today, on 8 January, we hold our 4th #OADayOfAction. @oceanfdn and their global network remain committed as ever to fighting #OceanAcidification and finding solutions to this crisis. https://ocean-acidification.org/

#SDG14
March 4, 2025 at 9:30 AM