Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

NOAA’s Ocean Acidification Program Research Region

Region: Pacific Islands and Tropics

Related Posts

See news related to this Research Region

A large coral in American Samoa known as "Big Momma" Credit: NOAA Fisheries
education & outreach

Fatoata: Sami a Taeao (Tomorrow’s Ocean)

Fatoata: Sami a Taeao (Tomorrow’s Ocean) – Ocean Acidification Education Program in American Samoa Why we careWhile American Samoa does not currently experience corrosive waters yet, future ocean change can pose a great threat to people’s security and wellbeing. Coral reefs in particular are not only essential to the economy and culture, they are also

Read More >

Calcification and organic production on a Hawaiian coral reef

Net ecosystem calcification rates (NEC) and net photosynthesis (NP) were determined from CO2 seawater parameters on the barrier coral reef of Kaneohe Bay, Oahu, Hawaii. Autosamplers were deployed to collect samples on the barrier reef every 2 h for six 48-hour deployments, two each in June 2008, August 2009, and January/February 2010. NEC on the Kaneohe Bay

Read More >

Sensitivity of atmospheric CO<sub>2</sub> and climate to explosive volcanic eruptions

Impacts of low-latitude, explosive volcanic eruptions on climate and the carbon cycle are quantified by forcing a comprehensive, fully coupled carbon cycle-climate model with pulse-like stratospheric aerosol optical depth changes. The model represents the radiative and dynamical response of the climate system to volcanic eruptions and simulates a decrease of global and regional atmospheric surface

Read More >

Surface Ocean CO<sub>2</sub> Atlas (SOCAT) gridded data products

As a response to public demand for a well-documented, quality controlled, publically available, global surface ocean carbon dioxide (CO2) data set, the international marine carbon science community developed the Surface Ocean CO2 Atlas (SOCAT). The first SOCAT product is a collection of 6.3 million quality controlled surface CO2 data from the global oceans and coastal seas, spanning

Read More >

A uniform, quality controlled Surface Ocean CO2 Atlas (SOCAT)

A well-documented, publicly available, global data set of surface ocean carbon dioxide (CO2) parameters has been called for by international groups for nearly two decades. The Surface Ocean CO2 Atlas (SOCAT) project was initiated by the international marine carbon science community in 2007 with the aim of providing a comprehensive, publicly available, regularly updated, global data

Read More >

Tropical cyclones cause CaCO<sub>3</sub> undersaturation of coral reef seawater in a high-CO<sub>2</sub> world

Ocean acidification is the global decline in seawater pH and calcium carbonate (CaCO3) saturation state (Ω) due to the uptake of anthropogenic CO2 by the world’s oceans. Acidification impairs CaCO3 shell and skeleton construction by marine organisms. Coral reefs are particularly vulnerable, as they are constructed by the CaCO3 skeletons of corals and other calcifiers. We understand relatively

Read More >

Ocean acidification alters the otoliths of a pantropical fish species with implications for sensory function

Ocean acidification affects a wide diversity of marine organisms and is of particular concern for vulnerable larval stages critical to population replenishment and connectivity. Whereas it is well known that ocean acidification will negatively affect a range of calcareous taxa, the study of fishes is more limited in both depth of understanding and diversity of

Read More >

Seawater pH measurements in the field: A DIY photometer with 0.01 unit pH accuracy

A portable light-emitting-diode (LED) photometer has been developed to provide low-cost seawater pH measurements. The benefits of the new system include a simple “do-it-yourself” construction design, a hundredfold reduction in cost relative to benchtop spectrophotometric systems, routine calibration-free operation in the field, and precision and accuracy well suited to applications such as education, coastal zone

Read More >

Related Projects

See our funded projects for this Focus Area

A large coral in American Samoa known as "Big Momma" Credit: NOAA Fisheries

Fatoata: Sami a Taeao (Tomorrow’s Ocean) – Ocean Acidification Education Program in American Samoa Why we careWhile American Samoa does not currently experience corrosive waters yet, future ocean change can..

Secluded beach with tide pools and algae covered rock formations captured soon after sunrise, Half Moon Bay, California, USA. Credit: Jan Arendtsz (Flickr, CC)
This project provides a hands-on ocean and coastal acidification curriculum to students from a Title I school in Redwood City, California...
California's Humboldt coast as seen from a high vantage near sunset. Fog lingers above the King Range National Conservation Area. Credit: Guest photographer Bob Wick for CA Bureau of Land Management
Broadening Ocean Acidification Teaching and Learning (BOATL) offers teacher professional development and ocean acidification science education to Title 1 schools and local Tribes in the Humboldt, California region...
Haystack Rock on Cannon Beach, Oregon (2024). Credit: Kevin Crosby (Creative Commons)
This project seeks to address gaps in ocean and environmental education and improve outcomes for Oregon’s underserved and rural youth through the Oregon State University’s Science Math Investigative Learning Experiences..
North Carolina seen from space from MODIS on NASA's Aqua satellite on June 30, 2022
This project delivers ocean acidification education in rural North Carolina Title 1 schools that serve some of the highest Indigenous and underserved populations in the state...
Eastern oyster (Crassostrea virginica). Credit: NOAA Fisheries
This project creates a research course for high school students focused on career development, ocean acidification science and stewardship...

Related Publications

See publications produced by our funded projects for this Focus Area

Citation: Shamberger, K. E. F., Feely, R. A., Sabine, C. L., Atkinson, M. J., DeCarlo, E. H., Mackenzie, F. T., Drupp, P. S., & Butterfield, D. A. (2011). Calcification and organic production on a Hawaiian coral reef. Marine Chemistry, 127(1-4), 64-75. https://doi.org/10.1016/j.marchem.2011.08.003
Citation: Frölicher, T. L., Joos, F., and Raible, C. C.: Sensitivity of atmospheric CO2 and climate to explosive volcanic eruptions, Biogeosciences, 8, 2317–2339, https://doi.org/10.5194/bg-8-2317-2011, 2011.
Citation: Juranek, L. W., R. A. Feely, D. Gilbert, H. Freeland, and L. A. Miller (2011), Real-time estimation of pH and aragonite saturation state from Argo profiling floats: Prospects for an autonomous carbon observing strategy, Geophys. Res. Lett., 38, L17603, doi:10.1029/2011GL048580.

ADAPTING TO OCEAN ACIDIFICATION

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:

FORECASTING

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

MANAGEMENT

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

TECHNOLOGY DEVELOPMENT

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

REDUCING OUR CARBON FOOTPRINT

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

TAKE ACTION WITH YOUR COMMUNITY

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