Ocean Action Hub

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Atmospheric carbon dioxide (CO2) levels are rising as a result of human activities, such as fossil fuel burning, and are increasing the acidity of seawater. This process is known as ocean acidification. Historically, the ocean has absorbed approximately 30% of all CO2 released into the atmosphere by humans since the start of the industrial revolution, resulting in a 26% increase in the acidity of the ocean (average global decrease in ocean pH of about 0.1 unit).

Ocean acidification make it more difficult for the numerous organisms that fix calcium carbonate in their skeletons and shells to do so, and can also impact metabolic and reproductive processes in many marine species. By impacting marine ecosystems at multiple levels, it has significant potential to affect food security and livelihoods that depend upon healthy marine ecosystems. The economic impact of ocean acidification could be substantial.

Reducing CO2 emissions is the only way to minimize long-term, large-scale risks from ocean acidification (IGBP, IOC, SCOR, 2013, p. 1).

Latest

31 Jan 2018 - An onslaught of bottles, bags and other litter makes reefs 20 times more likely to get sick. Scientists are scrambling to learn why.

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30 Jan 2018 - Coral reefs are critically important to the world but despite the ongoing efforts of scientists and campaigners, these stunningly beautiful ecosystems still face a 

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26 Jan 2018 - Plastic is one of the biggest threats to the future of coral reefs after ocean warming, say scientists.

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25 Jan 2018 - Australian research body CSIRO announced that its research partnership with

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Leaders from across the political, economic, environmental and risk sectors will gather in Bermuda (8-10 May 2018) for the first Ocean Risk Summit.

Event Date:
08/05/2018 - 14:30 to 10/05/2018 - 19:00
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19 Jan 2018 - Erik Solheim cites ‘huge decline’ in world’s reefs but says shift from coal and new awareness of plastic pollution are good news.

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18 Jan 2018 - A new program Ocean Solutions Accelerator aims to help advance startups in tech and conservation relating to the big blue. 

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17 Jan 2018 - A new model predicts that as ocean temperatures rise, carbon-storing sea grass may disappear and even go extinct in some ecosystems.

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16 Jan 2018 - New Zealand is being urged to help create what would be the largest protected area on the planet.

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15 Jan 2018 - A study published in Science last week reveals that severe bleaching of coral reefs is occurring twice as frequently compared to what it was in 1980.

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11 Jan 2018 - People around the world strongly support ocean conservation measures, according to a new study of public perceptions of marine threats and protection.

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10 Jan 2018 - As temperatures rise, oxygen levels in the ocean are falling, threatening marine life and coastal economies. But the only solution to deoxygenation is to dramatically reduce greenhouse gas emissions – and it may already be too late.

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