Archive for the 'Newsletters and reports' Category

Oregon’s draft ocean acidification & hypoxia action plan

This OAH Action Plan was developed in recognition of the OAH impacts that we see today, in the hopes of minimizing the impacts for tomorrow, and altering the trajectory of ocean changes for future generations. Because Oregon is one of the first states to feel the impacts of OAH, it is our intent that the OAH Action Plan will contain actions that are meaningful locally, and in fighting the global challenges of climate and ocean changes.  Additionally, the Action Plan will serve as a model for others to apply to their own geographical and political context. Once adopted by Governor Brown, the Action Plan will guide Oregon’s efforts and become Oregon’s submission to the International Alliance to Combat Ocean Acidification, and thus will be shared with the region and world.

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New edition of the “OA-ICC Highlights”, January – March 2019


The new edition of the “OA-ICC Highlights” summarizes the project’s main activities and achievements over the period January – March 2019. This newsletter highlights the Blue Oceans Conference, the Commonwealth OA Action Group, the Community of Ocean Action on OA, and capacity building activities in Latin America.

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A kelping hand

As carbon dioxide is pumped into the atmosphere, the oceans absorb much of it, changing the chemical balance of the seawater. The phenomenon is termed ocean acidification and it’s a potential threat for some marine species. Now, the shellfish industry have to combat chemical changes as the water in their hatcheries becomes inhospitable. But Davis has a plan: kelp.

Led by the Puget Sound Restoration Fund, Davis and a crew of oceanographers, biologists and chemists started testing kelp’s natural ability to absorb dissolved carbon dioxide in Puget Sound’s water in 2016. They wanted to know if kelp could soak up enough carbon to create a halo of healthy water around areas growing shellfish. Ocean water has remained slightly basic for thousands of years, but in the last two centuries it has begun to increase in acidity. The National Oceanic and Atmospheric Administration projects seawater will be 150 percent more acidic by the end of the century, if carbon dioxide emission rates continue to increase at the current pace.

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New edition of the “Ocean Acidification Report” by Global Ocean Health (GOH)

The “Ocean Acidification Report” is a timely compilation of news from the front lines of ocean acidification research, legislation, resources, and profiles from the waterfront.

The November 2018 edition covers topic such as land-based coral restoration farm, crabbers suing the fossil fuel industry, the failure of WA’s carbon fee initiative, razor clams, the Global Climate Action Summit, two new Climate Assessments, Arctic OA, and more.

Go to report.

Impacts, risks, and adaptation in the United States: 4th U.S. national climate assessment, volume II

Key message 3: Warming and acidifying oceans

The world’s oceans have absorbed 93% of the excess heat from human-induced warming since the mid-20th century and are currently absorbing more than a quarter of the carbon dioxide emitted to the atmosphere annually from human activities, making the oceans warmer and more acidic. Increasing sea surface temperatures, rising sea levels, and changing patterns of precipitation, winds, nutrients, and ocean circulation are contributing to overall declining oxygen concentrations in many locations.

Continue reading ‘Impacts, risks, and adaptation in the United States: 4th U.S. national climate assessment, volume II’

Second state of the carbon cycle report (SOCCR2)

The Second State of the Carbon Cycle Report (SOCCR2) provides a current state-of-the-science assessment of the carbon cycle in North America (i.e., the United States, Canada, and Mexico) and its connection to climate and society (see Box 1, What Is SOCCR2?, this page). Information from the report is relevant to climate and carbon research as well as to management practices in North America and around the world. This general overview provides abbreviated highlights of some of the many significant findings from the 19 chapters in SOCCR2.

Ocean acidification, or the decrease in seawater pH due to increased oceanic CO2 absorption, can adversely affect many marine populations and ecosystem processes, including organisms that people rely on for food and ecosystem services that sustain economies and cultures throughout North America. Acidification is occurring faster in circumpolar regions and some coastal areas than in the open ocean. For example, over the past decade, Arctic and Pacific Northwest coastal waters have experienced longer, more frequent periods of lower pH, putting livelihoods reliant on these areas at increased risk. Maintaining and expanding existing ocean observing programs, as well as continuing coordinated work with stakeholders, will be critical to ensure a healthier ocean, resilient communities, and strong economies.

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No safe haven for coral from the combined impacts of warming and ocean acidification

Corals reefs face double threats from rising atmospheric carbon dioxide: severe heat stress and ocean acidification. Severe heat stress causes bleaching (the expulsion of corals’ food-producing algae). Ocean acidification (the drop in seawater pH as the ocean absorbs carbon dioxide) reduces the availability of calcium minerals for skeleton building and repair. The combination of these two threats poses a Catch-22 for coral reefs. In many cases, the longer a reef is protected from severe heat stress, the more time the ocean has to absorb carbon dioxide, and the greater the threat the reef will face from acidification by that point in time.

Continue reading ‘No safe haven for coral from the combined impacts of warming and ocean acidification’

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Ocean acidification in the IPCC AR5 WG II

OUP book