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 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

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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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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6 Jun 2018 - UN Secretary-General Antonio Guterres has warned that there would be more plastic than fish by 2050 if the present trends continue.

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5 Jun 2018 - Managed marine protected areas are an effective tool in coastal ocean conservation. They are also ripe to be included in investment structures. The upsides for everyone may help push the protected area of the world’s seas from 2% to 30% by 2030.

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4 Jun 2018 - The celebrated author Margaret Atwood has told a conference that humanity's future is linked to the survival of ocean ecosystems.

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30 May 2018 - In line with SDG 14, development of Blue Economy sector must also promote social inclusion while ensuring environmental sustainability.

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