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Ocean Acidification Program News

U. S. Ocean Acidification Action Plan Released

A vibrant coral reef is the background for the United States Ocean Acidification Action Plan, released December 10, 2023 at COP28

A Roadmap for the other National Ocean Acidification Action Plans

The United States released the U.S. Ocean Acidification (OA) Action Plan during the United Nations Climate Change Conference (COP28) on December 10, 2023. This side event was co-hosted by NOAA Ocean Acidification Program, U.S. Department of State, and International Alliance to Combat Ocean Acidification (‘OA Alliance’), entitled “U.S. Release of National Ocean Acidification Action Plan: National governments commitment to policy and investments to implement SDG 14.3 “to minimize and address OA”. During this side event, other government leaders  made commitments to domestic OA Actions including representatives from France, Sweden, Chile, Mexico, and Colombia. The U.S. is calling on more national governments to create OA Action Plans by UN Ocean Conference 2025, to support implementation of SDG 14.3

The U.S. joined the OA Alliance at the UN Ocean Conference in 2022. The OA Alliance is a voluntary coalition that works to build international momentum for actions that address the causes of OA, increase research and monitoring efforts, and advance the resilience of coastal communities. The Department of State and NOAA co-lead the U.S. national membership in the OA Alliance and worked with the OA Alliance secretariat to develop a plan for drafting the U.S. OA Action Plan. Many subnational groups, such as states, tribal nations, and organizations within the U.S. also produced action plans that served as resources for the national U.S. OA Action Plan. NOAA and the U.S. Department of State led the drafting of the US OA Action Plan. The U.S. OA Action Plan complements strategies put forward in the national Ocean Climate Action Plan published in March 2023, and existing national and international OA strategies and frameworks, such as the UN Framework Convention on Climate Change and UN Sustainable Development Goal Agendas. This action plan is a U.S. COP28 deliverable, as well as a deliverable of the UN Ocean Decade Project ‘Understanding and Addressing OA and Changing Ocean Conditions Through the Development of OA Action Plans’ and supports implementation of the Ocean Acidification Research For Sustainability (OARS) UN Decade Endorsed Programme.

The Action Plan has three key components that include 1) an overview of U.S. federal OA actions to date (2009-2023), 2) U.S. federal priorities for OA research, knowledge applications, and policy integration moving forward, and 3) best practices and recommendations for other national governments developing OA Action Plans. Across these three components, four themes were addressed including 1) OA mitigation, 2) research and monitoring, 3)  resilience and adaptation, and 4) sub-national and international collaborations. This document aims to be a roadmap for other countries and to encourage them to join the OA Alliance, write action plans, and support OA activities within their countries.

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The NOAA Ocean Acidification Program (OAP) works to prepare society to adapt to the consequences of ocean acidification and conserve marine ecosystems as acidification occurs. Learn more about the human connections and adaptation strategies from these efforts.

Adaptation approaches fostered by the OAP include:


Using models and research to understand the sensitivity of organisms and ecosystems to ocean acidification to make predictions about the future, allowing communities and industries to prepare


Using these models and predictions as tools to facilitate management strategies that will protect marine resources and communities from future changes


Developing innovative tools to help monitor ocean acidification and mitigate changing ocean chemistry locally


On the Road

Drive fuel-efficient vehicles or choose public transportation. Choose your bike or walk! Don't sit idle for more than 30 seconds. Keep your tires properly inflated.

With your Food Choices

Eat local- this helps cut down on production and transport! Reduce your meat and dairy. Compost to avoid food waste ending up in the landfill

With your Food Choices

Make energy-efficient choices for your appliances and lighting. Heat and cool efficiently! Change your air filters and program your thermostat, seal and insulate your home, and support clean energy sources

By Reducing Coastal Acidification

Reduce your use of fertilizers, Improve sewage treatment and run off, and Protect and restore coastal habitats

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You've taken the first step to learn more about ocean acidification - why not spread this knowledge to your community?

Every community has their unique culture, economy and ecology and what’s at stake from ocean acidification may be different depending on where you live.  As a community member, you can take a larger role in educating the public about ocean acidification. Creating awareness is the first step to taking action.  As communities gain traction, neighboring regions that share marine resources can build larger coalitions to address ocean acidification.  Here are some ideas to get started:

  1. Work with informal educators, such as aquarium outreach programs and local non-profits, to teach the public about ocean acidification. Visit our Education & Outreach page to find the newest tools!
  2. Participate in habitat restoration efforts to restore habitats that help mitigate the effects of coastal acidification
  3. Facilitate conversations with local businesses that might be affected by ocean acidification, building a plan for the future.
  4. Partner with local community efforts to mitigate the driver behind ocean acidification  – excess CO2 – such as community supported agriculture, bike & car shares and other public transportation options.
  5. Contact your regional Coastal Acidification Network (CAN) to learn how OA is affecting your region and more ideas about how you can get involved in your community
       More for Taking Community Action