Ocean Action Hub

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 makes 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

19 Nov 2018The Lab has opened its call for proposals for the 2019 cycle, seeking innovative financial ideas that can unlock investment to tackle some of the most difficult climate and sustainable development challenges.

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30 Oct 2018 - The EU made 23 new commitments, representing €300 million for the blue economy; climate change impacts; marine pollution; marine protection and sustainable fisheries.

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11 Oct 2018 - A new study examines how renewable energy, marine protected areas, carbon storage in marine plants, and other ocean-based solutions could help combat climate change and its effects on marine ecosystems.

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6 Sep 2018 - The World Bank launched the first in a series of bonds designed to raise awareness about the importance of ocean and water resources.

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10 Aug 2018 - Indigenous peoples disproportionately face the brunt of climate change, which is fast becoming a leading driver of human displacement.

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9 Aug 2018 - By the end of the century, the ocean is predicted to become two-and-a-half times more acidic, which is bad news for sea life.

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31 Jul 2018 - This technical brief presents a summary of scientific experiments...
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13 Jul 2018 - A one-stop shop for ocean literacy sharing existing global ocean...
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12 Jul 2018 - The ocean contributes $1.5 trillion annually to the global economy and assures the livelihood of 10-12 percent of the world’s population. But there’s another reason to protect marine ecosystems—they’re crucial for curbing climate change.

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3 Jul 2018 - The Lion’s Share fund will see partners contribute 0.5 percent of their media spend to support wildlife - including marine life - around the world. 
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2 Jul 2018 - Approximately 40% of the world’s 7.6 billion people live within 62 miles (100km) of an ocean coast. For the other 60%, some of whom may never have even seen an ocean, the seas still play a vital role in their lives.

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8 Jun 2018 - In celebration of World Oceans Day, a global campaign is being launched by UNDP and partners to invite people from all walks of life, to volunteer to take action.

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