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Acidification, eutrophication and HABs in estuarine waters: What do long-term data tell us?

Hans Paerl of University of North Carolina- Chapel Hill discusses how estuaries receive and process nutrient loads generated in coastal watersheds and often exhibit accelerated rates of primary production (eutrophication), phytoplankton blooms, hypoxia and associated water quality and habitat declines. As such, they are highly dynamic with respect CO2 fixation and mineralization of autochthonous organic

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Synergies Between OAH and HAB Networks: California as a Case Study

Raphe Kudela of University of California Santa Cruz shares how the US west coast is experiencing increasing environmental stress, as are all coastal regions globally. Unlike some other regions, eastern boundary currents naturally experience large swings in pH and decadal oscillations in temperature, making the west coast an ideal location for observing the interactive effects

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HABs and ocean acidification: Additive, synergistic, antagonistic, or otherwise?

Dr. Chris Gobler discusses how harmful blooms and ocean acidification have emerged as two expanding threats to coastal ecosystems. Regardless of how acidification affects HABs, it is a clear environmental threat to a suite of calcifying invertebrates as well as other marine organisms including early life stage fish.  While HABs and acidification co-occur on coastal

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A Tour of the Ocean Acidification Information Exchange

The Gulf of Mexico Coastal Acidification Network (GCAN) proudly presents Julianna Mullen, the Community Manager of the Ocean Acidification Information Exchange (OAIE). The OAIE is an online community for professionals involved with or interested in ocean and coastal acidification. Ms. Mullen will give an overview of the website, explain how individuals can join, and discuss

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February 6th, 2020, 12pmET

This virtual seminar will explore how calcium carbonate shells and shelly habitats are increasingly recognized as potential mitigation approaches for localized acidification effects, yet very little is known about the alkalinity and geochemical properties of intact oyster reefs. This research team collected cores of restored oyster reefs in Harris Creek, MD and measured alkalinity fluxes

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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