In the event of insufficient mitigation efforts, net-negative CO2 emissions may be required to return climate warming to acceptable limits as defined by the Paris Agreement. The ocean acts as an important carbon sink under increasing atmospheric CO2 levels when the physico-chemical uptake of carbon dominates. However, the processes that govern the marine carbon sink under net-negative […] The post Marine carbon sink dominated by biological pump after temperature overshoot appeared first on Ocean Acidification ..read more

The legal systems for ocean governance and climate change governance are based on the United Nations Convention on the Law of the Sea and the United Nations Framework Convention on Climate Change, respectively. However, due to differences in their negotiation backgrounds, legal scope, goals, and tasks, there is a lack of interaction between the two […] The post A study on the governance pathways of the Law of the Sea in response to climate change appeared first on Ocean Acidification ..read more

Date: 7 October 2024 Time: 2:00 pm -3:00 pm Location: MIT Center for Ocean Engineering – Room: 5-314 Speaker Name: Bianca Champenois Affiliation: Sand-lab Doctoral Student Abstract: A significant portion of atmospheric CO2 emissions is absorbed by the ocean, resulting in acidified seawater and altered carbonate composition that is harmful to marine life and ecosystems. Despite […] The post Student seminar: Data-driven modeling of ocean acidification in the US Northeast Coast appeared first on Ocean Acidification ..read more

An updated version of the OA-ICC bibliographic database is available online. The database currently contains 111108 references and includes citations, abstracts and assigned keywords. Updates are made every month. The database is available as a group on Zotero. Subscribe online or, for a better user experience, download the Zotero desktop application and sync with the group OA-ICC in Zotero. Please see […] The post OA-ICC bibliographic database updated appeared first on Ocean Acidification ..read more

Practical methodologies and operating procedures for ocean acidification researchers, especially users of the GOA-ON in a Box ocean acidification monitoring kit. Acknowledgments Coordination support for this work has been provided by The Ocean Foundation, the IAEA Ocean Acidification International Coordination Centre (OA-ICC), and the NOAA Ocean Acidification Program. In-person coordinating meetings in 2019 and 2024 […] The post Practical Best Practices for Ocean Acidification Monitoring appeared first on Ocean Acidification ..read more

Highlights Abstract Toxic harmful algal blooms (HABs) have received increasing attention owing to their threat to the health of aquatic life and seafood consumers. This study evaluated the impacts of elevated atmospheric partial pressure of CO2 (pCO2) on the production of paralytic shellfish toxins (PSTs) in different Alexandrium spp. strains, together with its further effects on the bioaccumulation/elimination […] The post Elevated pCO2 may increase the edible safety risk of clams exposed to toxic Alexandrium spp. appeared first on Ocean Acidification ..read more

Guide to inform community decision-makers, workers, educators and students Students learn first hand about ocean acidification as part of a NOAA Climate Stewards Program in 2016. (Image credit: Dieuwertje Kast/ University of Southern California Joint Educational Project) Today, the U.S. Global Change Research Program (USGCRP) released the third edition of the nation’s climate literacy guide: Climate Literacy: Essential Principles […] The post Federal science agencies update the nation’s climate literacy guide appeared first on Ocean Acidification ..read more

Highlights Abstract There is growing recognition that the hypoxic regions of the ocean are also becoming more acidic due to increasing levels of global carbon dioxide emissions. The impact of water acidification on marine life is largely unknown, as most previous studies have not taken into account the effects of hypoxia, which may affect how […] The post Impacts of ocean acidification and hypoxia on cellular immunity, oxygen consumption and antioxidant status in Mediterranean mussel appeared first on Ocean Acidification ..read more

The oceanic chromium (Cr) cycle is mainly governed by the interconversion and the distribution of Cr(VI) and Cr(III) species and their stable isotopic ratios (δ53Cr) in the water column. As a result, the Cr cycle generates a strong correlation between the natural logarithm of its dissolved concentration and δ53Cr regardless of the location of sampling. […] The post Shelf-to-basin shuttle of highly fractionated chromium isotopes in the Arctic Ocean appeared first on Ocean Acidification ..read more

Highlights Abstract The Northeast Pacific Ocean (NEP) is one of the important carbon sinks in the global ocean. The causes of carbon flux changes in this region have been widely studied, but the physical processes associated with large scale climate variability remain controversial primarily due to scarcity of spatially and temporally continuous observations. In this […] The post Impact of Alaska atmospheric blocking on the carbon flux in the Northeast Pacific Ocean appeared first on Ocean Acidification ..read more