Austin Pugh joins the OA CoP as our new Coordinator and a Research Associate with OA CoP Co-lead, Dr. Brent Else in the Geography Department at the University of Calgary. What is your background? Austin Pugh joins the OA CoP as our new Coordinator and a Research Associate with OA CoP Co-lead, Dr. Brent Else in the Geography Department at the University of Calgary. research interests come from many different avenues, however, I am fascinated by the resilience of life and how it reacts to changes in the environment around it. In my undergrad I helped with research in many projects; such as brachiopod morphology, ecological surveys, database work analysis, and crystallographic imaging (two of these projects appear in the images below). Eventually my interests lead me to become intrigued by the event of OA in the fossil record. Through my pursuit of knowledge in the growing field of conservation paleobiology I began to read and participate in research on OA in the modern to learn more about these events in the past. What is your interest or background in OA? During my time in university, I became fascinated with past environmental conditions and extinctions. Due my preference to invertebrate paleontology, past ocean acidification became a natural topic to begin to think about. This interest was nurtured by my lab and I had the opportunity to work on the physiological impacts of ocean acidification on snail shells with the help of an NSERC undergraduate award; a project which carried over to my thesis. This situated me in the field of ocean acidification and showing me a topic that I am passionate about. When studying the effects that ocean acidification has on the formation of biological carbonates it is hard to not think of the implications that it has in the modern and to deep time, implications that are still not all fully understood. It is this pursuit of knowledge about a process that is not only happening now but has also happened multiple times in the past that interests me. Why did you join the OA CoP? I applied for the coordinator position for multiple reasons. Science communication is an extremely valuable field, it allows "things to happen". Without proper communication researchers may not have access to the right resources to build their research on, policy makers may not be able to optimize their regulations, and general public may misunderstand the problem and be dismissive of it. Especially with the recent surge of interest in the field of ocean acidification, everyone has to do their part to make sure that the information that is being released is received and understood by the correct people. This job is an opportunity to do my part to facilitate the information flow and assist in a scientific feat that is much larger than myself. What do you see as the most pressing OA issue for Canadians? Or even globally? Like many scientific topics, communication as a whole holds everyone back. When I look at some of the most pressing issues with regard to ocean acidification they have either come about as a lack of communication between scientists and the public, Fisheries, Aquaculture, and other stake and rights holders. This lack/miscommunication leads to these groups not knowing the best practices, or conversations that are one sided until it is too late. I believe that if the OA community focuses on having discussions that span across disciplines and stake/rightsholder groups, we as a community, will have a much easier time solving the problems that rear their heads. If we communicate effectively, we can hopefully avoid some of the future problems that are so far unseen. What is the one take-home about OA that you wish all Canadians knew? I think that it would be extremely helpful if all Canadians understood the pH scale, more specifically, that pH is measured on a log scale. I have heard people mention that oceanic pH has only changing by 0.1 pH unit and all the predicted changes are less than 1 unit "what's the big deal"? The "big deal" is pH is represented on a log scale meaning that 1 unit represents a increase of x10. This understanding of the discrepancy between the degree of change of the number on the pH scale and the impact that it has on oceanic chemistry would assist everyone in having enough basic knowledge to care and about the issues that Canada is facing in our increasingly acidic oceans. What excites you most about the current or future of OA research in Canada? I think that Canada is such an exciting place to be conducting ocean acidification research because of the implications that it has on the world stage. Canada has the largest coastline in the world. This paired with all of the wonderful researchers that are working alone and together has positioned Canada to be a world leader in ocean acidification research. Anything else you’d like to say? This position gives me a chance to assist in science communication and science leadership. Fields that I find genuinely interesting and think are critical to the future of ocean acidification research. While I get to promote these fields, I also get to give back to the Canadian scientific community. I am very excited at the opportunity of working with the CoP and all of its members. I look forward to meeting you all!

The Ocean Acidification Canadian Community of Practice is a countrywide cohesion grown out of the cooperation of groups and individuals. Indigenous communities are an important part of the OA community having lived with and observed coastal systems for generations. Today is the first annual Truth and Reconciliation day, which is a day put aside to commemorate the children who died in residential schools, survivors and families that are still being impacted by them. We as a community would like to share educational resources to assist our community in understanding the difficult past that we all share with hopes of moving forward in a future of equality and kindness. Truth and Reconciliation Commission of Canada: Calls to Action Important Websites: National Centre for Truth and Reconciliation website: https://nctr.ca/ Marine Plan Partnership for the North Pacific Coast (MaPP) Videos: 1) Elder Talk: Exploring Identity 2) Indigenous Leaders Panel 3) Indigenous Learning Series Trailer 4) Many Eagle Set Dance Sone (Michif song) 5) The Memoires of Russell Moses, Residential School Survivor 6) The Path of Reconciliation 7) Reconciliation Through the Arts 8) Truth and Reconciliation (with the Honourable Senator Murray Sinclair) 9) What does Indigenous Mean? 10) Why I Joined the Public Service Podcast: Sitting by The Fire Articles and Books: 1) For Natural Scientists: Towards reconciliation: 10 Calls to Action to natural scientists working in Canada by Wong et al., 2020: https://doi.org/10.1139/facets-2020-0005 2) Book for scientists/non-scientists alike: "Braiding Sweetgrass" by Robin Wall Kimmerer: https://www.robinwallkimmerer.com/books The Government of Canada has made some of these and more resources available; such as apps, courses and job aids. Resources available here.

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! In the News Companies hoping to grow carbon-sucking kelp may be rushing ahead of the science Source: MIT Technology Review Read the Article Here New on the Blog Research Recap: Lead author, Dr. Olivier Sulpis (right), demonstrates the impact that ocean acidification has on the sea floor and shares the reason that this knowledge can help to understand the dissolution process. Read it here! New Educator Resource DJ Ocean, Drop The Base! How Our Oceans are Becoming More Acidic - Petty Harbour Mini Aquarium: A new science educational video posted by Exploring by the Seat of Your Pants’ YouTube channel! It’s time to drop the base! Our oceans are becoming more acidic and it’s important that we get “back to the basics" for our oceans. Join the Petty Harbour Mini Aquarium in learning about ocean acidification and how our changing climate is impacting our oceans. Our presentation will include explanations and demonstrations of ocean acidification and ocean concepts, featuring a cool ocean experiment and even a few animal friends! Watch it here! New Paper of Interest Hauri, C., Pagès, R., McDonnell, A.M.P. et al. Modulation of ocean acidification by decadal climate variability in the Gulf of Alaska. Commun Earth Environ 2, 191 (2021). https://doi.org/10.1038/s43247-021-00254-z Ocean-based Carbon Removal – call for content The spring 2022 issue of the Journal of Ocean Technology will focus on ocean-based carbon removal with guest editor Dr. Kate Moran. In this issue, we’ll look at recovery, fertilization, up/downwelling, electrochemical, seaweed cultivation, alkalinity; ocean acidification; carbon sequestration in sedimentary reservoirs and oceanic crust; and similar topics. We are inviting the submission of technical papers, essays, and short articles for this issue. https://bit.ly/V17N1JOT New Special Issue of Interest: Coastal Management Journal; Insights for Policy and Integrated Management *Cross posted from the OA Info Exchange (link here). The OA Alliance is delighted to announce a very special issue of Coastal Management Journal, “Ocean Acidification: Insight for Policy and Integrated Management." Four peer-reviewed articles & two essays covering technical, social, and policy issues around OA action and management are now available open-access. Many of the contributing authors are resource managers on the front lines of addressing OA. They are using a variety of strategies to assess information needs, develop data sets, build partnerships and formulate approaches that link ocean change science to applicable management at local and regional scales. While the issue consolidates current and emerging U.S. state policy directives and practices, we know that local and international actors will benefit from lessons learned and case studies presented—furthering our shared goal of advancing climate ocean action. READ & SHARE THE SPECIAL ISSUE HERE: https://www.oaalliance.org/coastal-management-special-issue With: @Parker Gassett @Micah Horwith @Charlotte Regula-Whitefield @Sarah Cooley @Whitney Berry@Anna Zivian @Charlotte Dohrn @Hanna Miller@Eric Laschever Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

Sediment on the sea floor is often created from the skeletons of microscopic shell forming animals that build their shells out of CaCO3 (calcium carbonate). Because seawater tends to become naturally more acidic as depth increases, when these animals die and sink to the sea floor, they are vulnerable to dissolution. The risk of dissolution of the sea floor is elevated the more acidic the ocean becomes, however the degree to which they are vulnerable is still unknown. We interviewed Dr. Olivier Sulpis whose recent study examines how anthropogenic CO2 affects these sediments on the sea floor. Dr. Sulpis is currently a Postdoctoral Researcher based in Utrecht, Netherlands working in the Geochemistry research group of the Department of Earth Sciences at Utrecht University. What is your background? I have a bachelor degree of Earth Sciences from the Université de Lyon in France. There, I learned about the climate crises that have occurred along the long history of Earth, in particular that of the Anthropocene, characterized by CO2 emissions, ocean acidification and mass extinctions. I also enjoyed chemistry and working in a lab. So I merged these two things together for my PhD at McGill University, Montreal, and wrote my thesis about the dissolution of sediments at the bottom of the oceans driven by human activities. For those of us not familiar with your area of research, could you give us a little bit of background on your research project? Calcium carbonates are a family of natural minerals, produced by marine organisms to constitute their shells and skeletons and covering the seafloor. These minerals dissolve when they are immersed in water above a certain acidity threshold, and when they do so it neutralizes some of the acid, acting like an anti acid tablet. Today CO2 emissions from human activities acidify the ocean, and it causes the calcium carbonate minerals at the seafloor to dissolve. "...If we want to know how fast the seafloor is dissolving, we need to have a good idea of what controls dissolution..." What was the motivation or inspiration for this research? What causes the dissolution, other than the level of acidity in the water, was not well known. The goal of this research was to build up on studies documenting dissolution of calcium carbonates in well-mixed seawater, and to look at what happens when these calcium carbonates are packed into a sediment. If we want to know how fast the seafloor is dissolving, we need to have a good idea of what controls dissolution and how fast chemical reactions involved are happening "...Ocean acidification has now reached the bottom of the ocean..." What was the main question of this research? How fast are calcium carbonate minerals at the seafloor dissolving? How did you conduct this research or how did you go about answering your question? First, I did a series of laboratory experiments in which I reproduced tiny seafloor environments in laboratory reactors (see fig. 2), placed sediments of natural calcium carbonate grains in them (see fig. 1), and measured how fast they were dissolving. Then, I took results from these laboratory experiments and applied them at the real seafloor, where we know pretty well now what is the chemical composition of the seawater since it has been sampled by oceanographic cruises worldwide since the 70s. "...This dissolution is more of a warning signal..." What were the main findings of your work? With my colleagues, we found that calcium carbonates at the seafloor were dissolving faster at certain areas of the seafloor, where seawater is rich in anthropogenic substances, including CO2, and thus more acidic than elsewhere. That means that ocean acidification has now reached the bottom of the ocean, and is sufficiently advanced to alter its composition. "What was surprising though is that this dissolution is already happening today, when we thought it would be something that would take place in the future." Did you find anything unexpected? It was not really a surprise, we know that the ocean are acidifying today, we can measure that, and we know that calcium carbonates dissolve upon acidification. We see that in the sediment record, where sediment layers that correspond to episodes of Earth history associated with elevated atmospheric CO2 concentrations are often of a brown color, because the white calcium carbonates dissolved. What was surprising though is that this dissolution is already happening today, when we thought it would be something that would take place in the future. What is the one take-home of this work that you want everyone to know or remember? Calcium carbonates dissolving at the seafloor sound scary, but we should not worry too much about that. If anything, this dissolution is helping us because it is neutralizing the excess acid. What we should worry about though is the many other negative effects of today’s rapid CO2 emissions. This dissolution is more of a warning signal, reminding us that we, humans, are now altering all kinds of environments on Earth, even places so remote that we have never set foot on, like the deep seafloor. Read Sulpis et al., 2018 here (open access): Current CaCO3 dissolution at the seafloor caused by anthropogenic CO2 Citation: Sulpis, O., Boudreau, B.P., Mucci, A., Jenkins, C., Trossman, D.S., Arbic, B.K., and Key., R.Mm. 2018. Current CaCO3 dissolution at the seafloor caused by anthropogenic CO2. Proceedings of the National Academy of Science, 115:46, 11700-11705. https://doi.org/10.1073/pnas.1804250115 To learn more about Dr. Sulpis and his research, please follow him on Twitter (@OlivierSulpis) and view his website (https://deep-c.xyz/). Acknowledgements: Thanks to Dr. Olivier Sulpis for taking the time to answer our questions and provide insight on this important new research. All photo/figure captions were provided by Dr. Sulpis.

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! New Video: Ocean Acidification poetry by Samantha Jones We are excited to debut the new video of “Ocean Acidification”, a poem by Samantha Jones (University of Calgary, Geography). Thanks to our collaborators, The Ocean Foundation and the OA Alliance. The video was made by James Nikitine. Watch the video here: https://youtu.be/d2HQr_mWKKI The poem “Ocean Acidification” blends science and poetry to explore one of the challenges a high-CO2 world poses to the ocean and the species, ecosystems, and human communities that depend on it. Author Samantha Jones’ PhD research on carbon cycling in the Canadian Arctic inspired this work, which first appeared in WATCH YOUR HEAD (online) in March 2021 at https://www.watchyourhead.ca/. Samantha is currently a PhD Candidate in Geography at the University of Calgary in Alberta, Canada. NEXT WEEK – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” Read it here. Update: Ocean in a High CO2 World Meeting From: https://www.highco2-lima.org/ “COVID-19 virus update The 5th Symposium on the Ocean in a High CO2 World has been rescheduled to 2022 due to the COVID-19 outbreak. The meeting venue remains the same, and workshops associated with the symposium should also be rescheduled. Abstract submissions will remain open until 24 April 2022. Senior authors of abstracts already submitted will be contacted to provide an opportunity to modify or update the abstract and the type of presentation (oral or poster).” In the News “Carbon emissions could change 95 per cent of surface ocean climates by 2100, threatening ecosystems: study” Source: CTV Read the full article here. New Special Issue of Interest The Role of Ocean-based Negative Emission Technologies for Climate Mitigation Frontiers in Climate https://www.frontiersin.org/research-topics/12507/the-role-of-ocean-based-negative-emission-technologies-for-climate-mitigation Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! New: OA CoP September Newsletter We released our newest OA Community of Practice quarterly newsletter (September) yesterday and it is full of exciting updates, including some new faces to our OA Community of Practice team, and details on GOA-ON's upcoming OA Week (Sept. 13 - 17, 2021)! Read it here. In the News “Government of Canada and Province of British Columbia invest in salmon and habitat research and aquaculture science” Source: Fisheries and Oceans Canada Read the full article here. Call for Abstracts - Ocean Sciences Meeting 2022 session on Arctic Ocean Carbon Cycle: Past, present and future *Cross posted from the OA Info Exchange (link here). “Please consider contributing to our Ocean Sciences Meeting 2022 (27 Feb. - March 4) session HL17 The Arctic Ocean Carbon Cycle: Past, present and future Abstract submission deadline: September 15, 2021 Session Format: In-person Organizers: Mike DeGrandpre Brent Else Claudine Hauri The Arctic Ocean has dynamic and diverse biogeochemical areas ranging from some of the most productive coastal waters in the world to large oligotrophic open ocean basins. Organic and inorganic carbon therefore naturally vary significantly in time and space. Overlying this natural variability is the rapidly changing physical and chemical environment of the Arctic Ocean driven by climate change and ocean acidification. Loss of ice cover, changing freshwater inputs, warming and changes in broadscale circulation all compound the inherent complexity of the AO carbon cycle. For example, primary production trends are highly uncertain because of the interplay between nutrient fluxes, increased solar irradiance, stratification and wind-driven mixing. Making progress on understanding how these mechanisms currently regulate carbon uptake, export, and air-sea exchange requires intensive measurement programs, ideally during all seasons. Further efforts are also needed to develop more accurate coupled physical-biogeochemical models. In this session, we welcome presentations from studies focused on the AO carbon cycle, including observational and model studies of primary production, nutrient fluxes, inorganic and organic carbon, air-sea CO2 fluxes, ocean acidification and related physical forcings. Cross listed Tracks: Climate and Ocean Change; High Latitude Environments; Ocean Biology and Biogeochemistry; Ocean Modeling; Ocean Technologies and Observatories Keywords: Biogeochemical cycles, processes, and modeling; Arctic and Antarctic oceanography; Physical and biogeochemical interactions Updates on COVID19 related conference format changes are available here.” Save the Date – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” New Paper of Interest Durland, Evan, Pierre De Wit, Eli Meyer, and Chris Langdon. 2021. Larval development in the Pacific oyster and the impacts of ocean acidification: differential genetic effects in wild and domesticated stocks. Evolutionary Applications, 2021. https://doi.org/10.1111/eva.13289 Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

Our newest Quarterly Newsletter (September, 2021) has arrived and is full of exciting updates, including some new faces to our OA Community of Practice team, and details on GOA-ON's upcoming OA Week (Sept. 13 - 17, 2021)! Download the full PDF version (high resolution with interactive links): Page images:

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! Call for Abstracts - CB12 Coastal Acidification in a Multistressor Ocean *Cross posted from the OA Info Exchange (link here). ““Edit: This session is now in the hybrid format and the abstract deadline has been updated below. The OSM 2022 abstract submission deadline is 11:59 pm EDT on 29 September 2021. The full session description is below and you can find it in the OSM 2022 program with the Coastal and Estuarine Biology and Biogeochemistry sessions (scroll down to CB12) here (https://www.aslo.org/osm2022/scientific-sessions/#cb). We are very excited for this interdisciplinary session and look forward to receiving your abstracts! CB12 Coastal Acidification in a Multistressor Ocean Session Format: In-person Organizers (find more contact info on the OAIE post here): Katie Shamberger Andrea Kealoha Simone Alin Marjorie Friedrichs Claudia Mazur Ocean acidification refers to the increase in seawater carbon dioxide (CO2) and accompanying decrease in pH, calcium carbonate saturation state (Ω), and carbonate ion concentration driven by oceanic uptake of anthropogenic CO2 from the atmosphere. Ocean acidification, in concert with other climate change impacts (e.g. warming, deoxygenation, changing current patterns), is altering the biogeochemical cycling of the global ocean, with numerous negative impacts on marine organisms, ecosystems, and associated ecosystem services. In addition to these global stressors, the coastal ocean is subject to a wide range of local anthropogenic stressors that can exacerbate or ameliorate acidification of coastal waters. For example, land-use changes can alter freshwater input, nutrient loading, and sedimentation, leading to changes in pelagic and benthic production, which can cause concurrent hypoxia and acidification, and affect seawater CO2, pH, and Ω. Further, global and local processes interact to affect coastal acidification in ways that are currently difficult to predict. For example, changes in precipitation patterns can alter carbon cycling through changes in freshwater input to the coastal ocean. Increasing tropical storm intensity and precipitation can enhance delivery of land-based nutrients, causing changes in biological production. Shifts in large scale wind patterns may affect stratification, coastal upwelling, and bottom water acidification. Ocean warming causes coral bleaching events that alter the metabolism and carbon cycling of coral reef ecosystems. This session explores the multitude of ways global and local stressors combine to affect estuarine and coastal carbon cycling and acidification, and the current and future implications for coastal ocean ecosystems. We welcome observational, numerical modeling, and experimental laboratory and field studies from all coastal ocean regions, with particular interest in calcifying ecosystems and interacting stressors.” Implementing UN SDG 14.3 Panel Recording Protecting Communities and Livelihoods from the Threat of a Changing Ocean Co Hosted by the International Alliance to Combat Ocean Acidification (OA Alliance) and The Ocean Foundation, this panel was held as part of World Oceans Day 2021 on June 8th. The recording is ~1 hour long and features several expert talks from panelists around the world. Watch the video here. In the News “Routley says joint investment will make fisheries more sustainable and boost local jobs” Source: Chemainus Valley Courier Read the full article here. Save the Date – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” New Paper of Interest Pérez, F.F., Olafsson, J., Ólafsdóttir, S.R., Fontela, M., and Takahashi, T. 2021. Contrasting drivers and trends of ocean acidification in the subarctic Atlantic. Scientific Reports, 11:13991. https://doi.org/10.1038/s41598-021-93324-3 Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! New on the Blog New Resource: FOCCOAL Learn more about the Fisheries and Oceans Climate Change and Ocean Acidification Laboratory (FOCCOAL), developed and used by DFO scientists at the Pacific Biological Station to examine the effects of OA and warming on shellfish. Read the post and watch the video here. In the News “Government of Canada invests in ocean observation science to help protect Canada’s oceans” Source: Fisheries and Oceans Canada Read the full article here. New Educator Resource “Add ocean acidification to your existing lessons Use these tips to link UN sustainable development goal 14 to your lessons on dissolved ions, acids and the pH scale” Source: Royal Society of Chemistry Read the full article here. Save the Date – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” New Paper of Interest Peña, Viviana, Ben P. Harvey, Sylvain Agostini, Lucia Porzio, Marco Milazzo, Paulo Horta, Line Le Gall, Jason M. Hall-Spencer. 2021. Major loss of coralline algal diversity in response to ocean acidification. Global Change Biology, Early View (2021). https://doi.org/10.1111/gcb.15757 Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

At Fisheries and Oceans Canada's (DFO) Pacific Biological Station in Nanaimo, British Columbia, scientists Dr. Chris Pearce and Dr. Clara Mackenzie conduct important research on ocean acidification (OA). Much of their work involves examining how economically important species, such as Pacific oysters, will be impacted by OA and other climate stressors. To aid in their research, they have developed the Fisheries and Oceans Climate Change and Ocean Acidification Laboratory (FOCCOAL). This state-of-the-art system allows tight control of both seawater pH and temperature. The FOCCOAL system will be used primarily to examine multi-stressor (OA, high temperature) impacts on marine organisms. The main goal of this research will be to examine the effects of coinciding OA and warming to shellfish under both prolonged and short-term stressor conditions so as to determine whether long-term exposure or acute exposure events (e.g. upwelling events, heatwaves) pose a greater threat to species’ fitness and survival. Additionally, the research aims to investigate ways to mitigate impacts. To learn more about the FOCCOAL system, please watch the following video (full text provided): For more information, contact Chris.Pearce [at] dfo-mpo.gc.ca

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! IPCC 6th Assessment Report Released (Physical Science) This week, Working Group I of the Intergovernmental Panel on Climate Change (IPCC) released their Sixth Assessment Report (Climate Change 2021: The Physical Science Basis). New to this report is an interactive atlas which allows interactive exploration of the key findings of the report. Throughout the report, ocean acidification is named as a major concern, and the report is clear that anthropogenic carbon dioxide emissions over the past 40+ years have been the main driver of ocean acidification. Visit the IPCC Working Group I 6th Assessment Report website: https://www.ipcc.ch/report/ar6/wg1/ View the Summary for Policymakers: https://www.ipcc.ch/report/ar6/wg1/#SPM View the Interactive Atlas: https://www.ipcc.ch/report/ar6/wg1/#InteractiveAtlas View the Technical Summary: https://www.ipcc.ch/report/ar6/wg1/#TS View the full report: https://www.ipcc.ch/report/ar6/wg1/#FullReport Save the Date – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” In the News “The lobster genome map is complete, here's why it's important” Source: CBC News Read the full article here. New Paper of Interest Agostini, Sylvain, Ben P. Harvey, Marco Milazzo, Shigeki Wada, Koetsu Kon, Nicolas Floc’h, Kosei Komatsu, Mayumi Kuroyama, and Jason M. Hall-Spencer. 2021. Simplification, not “tropicalization”, of temperate marine ecosystems under ocean warming and acidification. Global Change Biology, Early View (2021). https://doi.org/10.1111/gcb.15749 Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!

Here are some of the latest happenings in the world of ocean acidification in Canada and beyond! New on the Blog Research Recap: New Paper: Caprellid amphipods vulnerable to both physiological and habitat-mediated effects of OA Lead author, Em Lim, shares their experiences and motivations in conducting a study examining direct and indirect effects of OA on caprellid amphipods (skeleton shrimp). Read the full post here. Save the Date – OA Week (September 13 – 17, 2021) Cross posted from the OA Info Exchange: “Ocean Acidification Week will be back in 2021! Last September, GOA-ON launched OA Week as a response to the postponement of conferences and events due to the COVID-19 Pandemic. We received such positive responses that GOA-ON, in partnership with NOAA OAP, IAEA OA-ICC, and IOC-UNESCO, is bringing OA Week back this year. We will bring you even more information and sessions from the regional hubs, more presentations by plenary speakers, and more conversations about global ocean acidification research. Please visit the new OA Week 2021 webpage for more details on the event. This webpage will be updated regularly as we continue planning the meeting. We also need your help: please suggest topics for the Community Discussion Sessions. Think of Community Discussion Sessions as short workshops, listening sessions, interactive presentations, or other platforms for promoting conversations about issues that are relevant to the OA community. Even if you cannot commit to leading a session, we'd still like your thoughts on what topics you'd like to see covered during OA Week 2021. Share your suggestions by commenting on the post on the OA Info Exchange. Finally, please share this news with your professional networks, and most importantly, don't forget to save the dates: Monday 13 September - Friday 17 September, 2021! If you have other questions about OA Week 2021, please contact us at secretariat@goa-on.org.” Webinar Recording Webinar: Communities of Ocean Action on Ocean Acidification Source: United Nations DESA Sustainable Development Watch the video here. In the News “The ocean has a serious case of heartburn. Is relief on the way?” Source: OCEANUS (Woods Hold Oceanographic Institution) Read the full article here. New Paper of Interest Ferreira, Camilo M., Connell, Sean D., Goldenberg, Silvan U., and Nagelkerken, Ivan. 2021. Positive species interactions strengthen in a high-CO2 ocean. Proceedings of the Royal Society B., 288:20210475. https://doi.org/10.1098/rspb.2021.0475 Have a news item you'd like us to feature? Email coordinator@oceanacidification.ca!