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Ocean Acidification Program News
Check out all of the news and visual webstories produced by the NOAA Ocean Acidification Program.

Water We Gonna Do?: Dive into MACAN’s New Acidification Video Game
Come along with MACAN and adventure through an education video game that follows acidification through coastal habitats. Meet coastal and ocean friends and help them recover from the effects of acidified waters.

Exploring our changing ocean storymap collection
Access six interactive StoryMaps showcasing relevant ocean acidification trends, science activities, stakeholder engagements and policy responses taking place across regions where NOAA supports U.S. Coastal Acidification Networks (“CANs”). The six regional NOAA CANs include activities in Alaska, California Current, North Atlantic, Mid-Atlantic, South Atlantic and the Gulf.

National Marine Sanctuaries Ocean Acidification Background
Ocean acidification is a complex issue that is being studied and addressed from several viewpoints, in various locations, and for different issues. Within the sanctuary system, sanctuary sites across the country and United States territories are studying how this change in ocean chemistry will and already is affecting their sites. Some sites are being hit

NOAA launches fourth East Coast Ocean Acidification mission
NOAA launched the fourth East Coast Ocean Acidification (ECOA-4) research cruise to monitor ocean acidification and impacts on marine resources.

Sea to shining sea: NOAA launches dual coastwide ocean acidification research missions
NOAA launches dual coastwide ocean acidification research cruises (ECOA-4, WCOA 2026) to track ocean chemistry and impacts on marine resources this June.
Synthesis of data products for ocean carbonate chemistry
This review article provides an overview of 68 existing ocean carbonate chemistry data products and data product sets, encompassing a broad range of types, including compilations of cruise datasets, gap-filled observational products, model simulations, and more. It is designed to help researchers identify and access the data products that best support their scientific objectives, thereby
Editorial: Time-series observations of ocean acidification: a key tool for documenting impacts on a changing planet
Ocean acidification (OA) is a pressing global issue characterized by fundamental changes in ocean chemistry, including the reduction of pH levels, due to the absorption of increased atmospheric CO2. This phenomenon poses significant threats to marine ecosystems, affecting biodiversity, food security, and coastal economies. Time-series observations remain indispensable for documenting these changes, offering insights into
The importance of engagement with fisheries, aquaculture, and Indigenous communities in the planning and implementation of marine carbon dioxide removal (mCDR)
As climate change continues to increase in severity, the window of time available to achieve climate stabilization decreases. In addition to reducing emissions, climate solutions such as marine carbon dioxide removal (mCDR) are being considered. If mCDR is to scale from research to implementation it will impact various sectors including fisheries and aquaculture. Well-coordinated, co-developed
Related Projects
See our funded projects for this Focus Area
- PI(s): Samantha Siedlecki, University of Connecticut; Shannon Meseck, NOAA National Marine Fisheries Service; Robert Murphy Jr, NOAA National Marine Fisheries Service
- Fiscal Year Funded: 2025, 2026, 2027, 2028
- Grant Award # NA25OARX017C0010-T1-01
- PI(s): Emily Rivest, Virginia Institute of Marine Science
- Fiscal Year Funded: 2025, 2026, 2027, 2028
- Grant Award # NA25OARX017G0008-T1-01
- PI(s): Robert Iles, Louisiana State University
- Fiscal Year Funded: 2025, 2026, 2027
- Grant Award # NA25OARX017G0012-T1-01
- PI(s): Hekia Bodwitch (University of Alaska Southeast), Davin Holen (Alaska Sea Grant and University of Alaska, Fairbanks), Kari Lanphier (Southeast Alaska Tribal Ocean Research Consortium)
- Fiscal Year Funded: 2025, 2026, 2027, 2028
- Grant Award # NA25OARX017G0010-T1-01
- PI(s): Katherine Mills, Gulf of Maine Research Institute; Jared Wildwistle, Gulf of Maine Research Institute
- Fiscal Year Funded: 2025, 2026, 2027
- Grant Award # NA25OARX017G0019-T1-01
- PI(s): Jan Newton, University of Washington
- Fiscal Year Funded: 2025, 2026, 2027
- Grant Award # NA25OARX017G0016-T1-01
Related Publications
See publications produced by our funded projects for this Focus Area
- Li-Qing Jiang, Amanda Fay, Jens Daniel Müller, Luke Gregor, Alizée Roobaert, Lydia Keppler, Dustin Carroll, Siv K. Lauvset, Tim DeVries, Judith Hauck, Christian Rödenbeck, Nicolas Metzl, Andrea J. Fassbender, Jean-Pierre Gattuso, Peter Landschützer, Rik Wanninkhof, Christopher Sabine, Simone R. Alin, Mario Hoppema, Are Olsen, Matthew P. Humphreys, Kunal Chakraborty, Ana C. Franco, Kumiko Azetsu-Scott, Dorothee C. E. Bakker, Leticia Barbero, Nicholas R. Bates, Nicole Besemer, Henry C. Bittig, Albert E. Boyd, Daniel Broullón, Wei-Jun Cai, Brendan R. Carter, Thi-Tuyet-Trang Chau, Chen-Tung Arthur Chen, Frédéric Cyr, John E. Dore, Ian Enochs, Richard A. Feely, Hernan E. Garcia, Marion Gehlen, Prasanna Kanti Ghoshal, Lucas Gloege, Melchor González-Dávila, Nicolas Gruber, Debby Ianson, Yosuke Iida, Masao Ishii, Apurva Padamnabh Joshi, Esther Kennedy, Alex Kozyr, Nico Lange, Claire Lo Monaco, Derek P. Manzello, Galen A. McKinley, Natalie M. Monacci, Xose A. Padin, Ana M. Palacio-Castro, Fiz F. Pérez, J. Magdalena Santana-Casiano, Jonathan Sharp, Adrienne Sutton, Jim Swift, Toste Tanhua, Maciej Telszewski, Jens Terhaar, Ruben van Hooidonk, Anton Velo, Andrew J. Watson, Angelicque E. White, Zelun Wu, Liang Xue, Hyelim Yoo, Jiye Zeng, Guorong Zhong
- Earth System Science Data
- February 24, 2026
- Masao Ishii, Brendan R. Carter, Katsuya Toyama, Keith B. Rodgers, Richard A. Feely, Thi-Tuyet-Trang Chau, Frédéric Chevallier, Flora Desmet, Luke Gregor, Yosuke Iida, Yoshiteru Kitamura, Jens Daniel Müller, Hiroyuki Tsujino
- Global Biogeochemical Cycles
- May 3, 2025
- L. Hošeková, T. Friedrich, B. S. Powell, C. Sabine
- JGR Oceans
- June 14, 2025



