Archive for the 'Presentations' Category

Climate change: what is ocean acidification? (text & video)

As carbon emissions change the chemistry of the seas, ocean acidification threatens marine life and human livelihoods. How worried should you be about climate change’s so-called “evil twin”?

The threat of ocean acidification | The Economist

Another consequence of carbon emissions

The ocean’s chemistry is changing at an unprecedented rate. By the end of this century the ocean is expected to be 150% more acidic than it is now. Acidification is threatening marine life. It’s killing baby oysters, deep-sea coral reefs and pteropods, tiny creatures, known as the potato chips of the sea. Human livelihoods are also in jeopardy. This film explores the alarming effects of ocean acidification, drawing on the expertise of scientists and the first-hand experiences of a Native Alaskan community. The film also looks at what can be done to lessen the problem.

The Economist, YouTube, 2 February 2023. Video.

GOA-ON webinar: mediterranean calcifying organisms under ocean acidification and warming (audio & video)

Dr. Chloe Carbonne (Laboratory of Oceanography of Villefranche, Sorbonne University, Villefranche-sur-Mer, France) and Maximiliano Szkope (University of Malaga, Malaga, Spain) will be presenting their work on calcifying organisms in the Mediterranean Sea under the effects of ocean acidification and warming.

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Celebrating the 5th Annual OA Day of Action (video & text)

Each year on the 8th of January, or 8.1 – the current pH of the ocean – we recognize The Ocean Acidification Day of Action. Watch this video to learn about how The Ocean Foundation and its partners are working to address ocean acidification, and join us in celebrating the successes of our community and setting our sights on the challenges ahead.

Visit our website to learn more about our International Ocean Acidification Initiative:

Ocean Acidification – The Ocean Foundation (oceanfdn.org)

OA Day of Action Press and Social Toolkit – The Ocean Foundation (oceanfdn.org)

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Ove Hoegh-Guldberg | coral reefs: from climate victims to survivors (video & text)

Prof Ove Hoegh-Guldberg was among the first to sound the alarm of the threat posed by ocean warming and acidification to marine ecosystems, following pioneering research into coral bleaching and mortality.

In his 29 November keynote at the Frontiers Forum, Ove gave an update on coral reef health globally and an outlook for the future. The session was attended by over 1,500 representatives from science, policy, and business across the world.

Ove’s talk was followed by a discussion with renowned coral scientists on how to protect and restore reefs so they flourish for centuries to come:

  • Prof Maoz Fine | Professor, Hebrew University of Jerusalem, Israel
  • Lisa Carne | Director/Founder, Fragments of Hope, Belize
  • Dr Nancy Knowlton | Sant Chair for Marine Science Emerita, Smithsonian National Museum of Natural History, USA

Ove led the team that revealed the molecular mechanisms of coral bleaching and developed the first projections of mass coral mortality. He heads global research, discussions, and action on the science and solutions to rapid climate change – including as Coordinating Lead Author for the ‘Oceans’ chapter for the Fifth Assessment report of the Intergovernmental Panel on Climate Change (IPCC) and Coordinating Lead Author on the ‘Impacts’ chapter of the IPCC Special Report on 1.5°C. He also conceived and led the innovative XL-Catlin Seaview Survey, which visually recorded the health of over 1,000 km of coral reefs across 25 countries. Ove is Professor of Marine Studies at the University of Queensland, Australia.

The Frontiers Forum showcases science-led solutions for healthy lives on a healthy planet. Watch previous sessions at https://forum.frontiersin.org

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2023 NOPP mCDR NOFO informational webinar (audio & video)

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GOA-ON Webinar: carbon cycle monitoring in the extreme latitudes, the Southern Ocean and Arctic Ocean (audio & video)

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Ocean calls podcast: can we turn back time and restore our oceans? (audio & text)

“We had the warmest temperature in Villefranche-sur-Mer, 28.2 degrees and this leads to mass mortality,” says the Intergovernmental Panel on Climate Change (IPCC) contributor Professor Jean-Pierre Gattuso in this episode of Ocean Calls.

The scientist describes a marine heatwave that hit the picturesque French Riviera this summer.

“Approximately 20 per cent of the coastal zone between the surface and ten-metre depth is lost.”

“In 2015 we had 80 per cent mortality of the coral reefs in the southern Red Sea, and they haven’t recovered yet, seven years after,” says Prof Carlos Duarte, a marine ecologist at the King Abdullah University in Saudi Arabia, our second guest on this episode.

In 2020, the two scientists co-authored a paper ‘Rebuilding Marine Life’ in the journal Nature, in which they listed five main actions to take in order to restore the abundance of marine life lost to human activity and climate change.

First, the actions needed to protect species. Second, spaces – the so-called Marine Protected Areas, then removing pressures on the ocean and addressing climate change “with a high level of ambition”.

“Then it’s also to harvest wisely and to remove pollution,” Duarte highlights.

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Ocean acidification, climate and society: mitigation & adaptation opportunities & challenges (video)

Ocean acidification, climate and society – mitigation and adaptation opportunities and challenges towards addressing SDG14.3 Rising CO2 is impacting ocean ecosystems and dependent coastal communities worldwide. This event will highlight how action-driven global scientific and cross-sectoral collaboration supports ‘interested parties’ on mitigation, adaptation and preparedness strategies, from local to global, to the combined impacts of ocean warming, acidification and deoxygenation.

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Ocean acidification adaptation and resilience in Africa (video)

Coastal communities in many African countries rely heavily on the sea for economic, social, and nutritional services. Ocean acidification has the potential to negatively affect marine ecosystems important to these communities. The losses would be alarming for the African continent. The IAEA is working with local, regional and international partners to understand and undress potential impacts and solutions to ocean acidification in Africa.

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Behavioural responses of fish to high CO2/low pH conditions observed at natural analogues (video & text)

Prof Tim Ravasi and Dr Davide Spatafora present their research on how the molecular basis and behavioural adjustments reveal potential local adaptation to acidifying oceans, a lesson from natural analogues, the second webinar from the International CO2 Natural Analogues (ICONA) Network. The first response by animals to a changing environment is predominantly through modification of their behaviour. In this context, investigating behavioural responses of fish living under low-pH/high-CO2 conditions (e.g. off volcanic seep sites) may contribute to a better understanding of how marine species might adjust or adapt to environmental conditions under projected ocean change scenarios. We carried out field-based observations and translocation experiments in the Vulcano island natural CO2 seep (southern Italy) to assess whether there is evidence for local behavioural adaptation and/or acclimatization of fish after long and short-term exposure to ocean acidification conditions predicted to occur by the end of this century. The responses of two temperate fish species, characterized by a limited home range, have been investigated and compared between fish from low-pH/high pCO2 sites and fish from control sites. Furthermore, understanding the molecular underpinnings responsible for acclimatization to acidified waters, by means of an integrated study of the brain transcriptional program of wild fish species, can elucidate on the variation in responses. We collected 130 individuals of six different reef fish species from a natural volcanic CO2 seep and nearby control reefs in Papua New Guinea. Differences in brain gene expression in fish from CO2 seeps compared to fish from control sites as well as differences among species identified the molecular pathways controlling the cellular responses to elevated CO2. These studies provide a broader understanding as to the behavioural and molecular alterations crucial for coping with naturally elevated CO2 conditions.

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Symposium High CO2 – Lima (audio & video)

All presentations from the 5th International Symposium on the Ocean in a High CO2 World (13-16 September 2022) have been posted on the Symposium YouTube channel. All talks are labeled by day, room and theme of participation. The description of each video lists the presentations captured in each video. 

Plenary talks will always remain available indefinitely and other talks will be available for one month only.

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Highlighting ocean acidification on the sustainability tour with Manel Bustelo and Alana Alvarez Vernice (audio)

In this podcast Melanie Boylan chats with Manuel Bustelo and Alana Alvarez Vernice about their ongoing mission to highlight ocean acidification. Listen in to find out how you can help to make everyday changes to improve our planets oceans.

The Sustainable Tour is DAN EU’s project to raise awareness of the need to drastically reduce our CO2 emissions if we want to maintain a healthy ocean. Manu and Alana are touring Europe and its surroundings (UK and Ireland in 2022) in an electric vehicle – recharging it only with renewable energy – visiting dive centres and other interested parties to give lectures on ocean acidification.

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Two poles, one common future – Richard Bellerby: ocean acidification (video & text)

In a series of short video interviews, the Prince Albert II of Monaco Foundation together with its partners in The Polar Initiative – SCAR, IASC and the Oceanographic Institute of Monaco – invited polar scientists and specialists to give a voice to polar regions, calling for a greater protection of Arctic and Antarctic regions and for shedding a light on the benefit they represent for the Planet and Humanity.

Richard Bellerby, Director SKLEC-NIVA Centre for Marine and Coastal Climate Research, states that “ocean acidification is one of the biggest challenges that we have to date (…), that will cause the local if not total extinction of some crucial species within the ocean.” According to him, “we have get the message out”, to the media and to the general public, as it is happening faster than ever before.

Visit https://www.thepolarinitiative.org/ for more information.

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Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)

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Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)

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This is CDR ep.49: MRV for ocean-based CDR methods with Dr. Jessica Cross, NOAA (video & text)

In this episode of This Is CDR, OpenAir welcomes NOAA Research Oceanographer Dr. Jessica Cross to discuss the challenges associated with measurement, reporting, and verification (MRV) of ocean-based CDR methods, and how we can seek to address them in a climate-relevant time-frame.

About our Guest. – https://www.pmel.noaa.gov/people/dr-j…

Dr. Jessica N. Cross is a research oceanographer with the NOAA in Seattle, WA. Her current research focuses on carbon biogeochemistry and ocean acidification in Arctic regions, and especially along the Alaskan coast. The main goal is to better understand how acidification processes interact with natural biogeochemical cycles, and eventually to detect geochemical and biological impacts of acidification in marine systems. Dr. Cross conducts her research across a variety of platforms, including ship-based measurements, moorings, and mobile autonomous platforms like gliders and drones, through NOAA’s Innovative Technology for Arctic Exploration Program. She also broadly participates in the Arctic research community through the North American Carbon Program, the Ocean Carbon Biogeochemistry Program, the Pacific Arctic Group, and the Interagency Research Policy Committee collaboration teams.

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Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)

Continue reading ‘Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)’

Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)

Continue reading ‘Emisión en directo de symposium high CO2 – Lima (video) (in Spanish)’

What is ocean acidification? (text & video)

WHAT IS OCEAN ACIDIFICATION?

Ocean acidification is the process by which the ocean absorbs carbon dioxide from the atmosphere, thus decreasing the ocean’s pH. The ocean absorbs up to one-third of the carbon dioxide (CO2) in the earth’s atmosphere. #ocean #oceanconservation #sustainability #lessonplan

Students will consider:

* What Is ocean acidification

* When does ocean acidification occur

* Where does ocean acidification occur

* How ocean acidification affects marine life

* How ocean acidification affects humans

* What is the main cause of ocean acidification

Visit Dynamic Earth Learning’s blog! http://www.dynamicearthlearning.com/blog

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Effects of ocean acidification and hypoxia on stress and growth hormone responses in juvenile blue rockfish (Sebastes mystinus) (video)

Hannah Bruzzio

“Effects of Ocean Acidification and Hypoxia on Stress and Growth Hormone Responses in Juvenile Blue Rockfish (Sebastes mystinus)”

Moss Landing Marine Labs Thesis Defenses

August 30th, 2022

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