ocean acidification News

  • Antarctic scientists to study ocean acidification

    The effects of ocean acidification, caused by atmospheric carbon dioxide dissolving in the ocean, will be a focus of research at Antarctica's Davis station this summer. Scientist Dr Andrew Davidson says that the research project will investigate the effects of ocean acidification on Antarctic marine microbes (phytoplankton, protozoa and bacteria). 'These organisms play a vital role in the marine ...


    By Australian Government

  • Ocean acidification causes substantial damage to ocean ecosystems

    According to the study, seas and oceans absorb approximately one quarter of the carbon dioxide emitted to the atmosphere from the burning of fossil fuels, deforestation, and other human activities. As more and more carbon dioxide (CO2) has been emitted into the atmosphere, the oceans have absorbed greater amounts at increasingly rapid rates. Without this level of absorption by the oceans, ...

  • Ocean acidification set to spiral out of control

    The continued release of greenhouse gases into the air is set to bring about huge changes to land ecosystems as they are forced to adapt to rising temperatures. But the marine world — which is just as integral to human existence yet receives little attention during climate negotiations — will endure a similarly tumultuous time as emissions rise, scientists say. “Changing oceans ...


    By SciDev.Net

  • Ocean acidification and GHGs hit record levels

    The World Meteorological Organisation (WMO) reports that the amounts of atmospheric greenhouse gases reached a new high in 2013, driven by rapidly rising levels of carbon dioxide. The news is consistent with trends in fossil fuel consumption. But what comes as more of a surprise is the WMO’s revelation that the current rate of ocean acidification, which greenhouse gases (GHGs) help to ...


    By Climate News Network

  • Growth of algae affected by ocean acidification and nutrient pollution

    Ocean acidification and eutrophication may affect the growth of microscopic algae — phytoplankton — with knock-on impacts for marine food chains and fisheries, warns a new study. By growing phytoplankton under different scenarios the researchers found that phytoplankton species are affected differently according to the acidity and nutrient content of the water. Ocean acidification is ...

  • Limiting ocean acidification under global change

    New computer simulations have examined the likely effects of mitigation scenarios on ocean acidification trends. They show that both the peak year of emissions and post-peak reduction rates influence how much ocean acidity increases by 2100. Emissions of carbon dioxide are considered to cause ocean acidification as well as global warming. Scientists have previously used computer simulations to ...

  • New EU research to investigate ocean acidification impact on ecosystems

    Emissions of carbon dioxide (CO2) through human activities have a well known impact on the Earth's climate. What is not so well known is that the absorption of this CO2 by the oceans is causing inexorable acidification of sea water. But what impact is this phenomenon having on marine organisms and ecosystems? This is a question to which researchers have few answers as yet. That is why the ...

  • Passage of House Climate Bill signals hope for saving oceans from acidification

    Oceana issued the following statement in response to the House of Representatives passage of the American Clean Energy and Security Act Friday, June 26. 'Oceana is pleased that the House of Representatives passed the American Clean Energy and Security Act. This legislation is a landmark step towards addressing climate, energy and jobs and provides hope for the already imperiled ocean ecosystems ...


    By Oceana

  • Rising temperatures and acidification in the oceans spell danger for shark populations

    Increasing temperatures and rising ocean acidification could reduce the health and survival of young sharks, new research has shown. Bamboo shark embryos incubated under ocean temperatures and acidity predicted for 2100 showed survival rates of 80% compared to 100% survival under present-day conditions. Once hatched, survival measured at 30 days was only 44% for those under predicted climate ...

  • Shipping emissions can lead to high local ocean acidification

    Strong acids formed from shipping emissions can produce seasonal ‘hot spots’ of ocean acidification, a recent study finds. These hot spots, in ocean areas close to busy shipping lanes, could have negative effects on local marine ecology and commercially farmed seafood species. Oceans have become more acidic since pre-industrial times. The average global ocean pH – which ...

  • EPA Funds Coastal Observation System for Indicators of Ocean Acidification in Casco Bay

    The U.S. Environmental Protection Agency provided a total of $85 thousand toward establishing a state-of-the-art coastal observing system in Casco Bay Maine to help coastal managers evaluate the threat of coastal acidification from excess CO2 in the atmosphere. The system was deployed on April 23, 2015. “Ocean acidification resulting from climate change and excess greenhouse gases ...

  • Media advisory: Ocean acidification poses growing risk to marine life and food security

    New report shows effects of rising concentrations of CO2 in marine environment Carbon dioxide emissions from the burning of fossil fuels continue to affect our atmosphere, resulting in global warming and climate change. But rising levels of CO2 emissions are also changing the chemical balance of our oceans, causing them to become more acidic and posing greater risk to marine ...

  • Global Economy to Lose Billions without Action to Stop Ocean Acidification, UN Report Warns

    An international team of thirty experts, led by UK scientists, has concluded that ocean acidification is already underway, and it is now near-inevitable that it will worsen, causing widespread impacts, mostly deleterious, on marine organisms and ecosystems, and on the goods and services they provide. A new international report "An updated synthesis of the impacts of ocean acidification on ...

  • Ocean pH value decreasing

    A research project into ocean acidification has increased knowledge about conditions in the Baltic Sea and Kattegat-Skagerrak. When the pH value falls, the whole marine ecosystem is affected. A newly developed measurement technique provides information about natural variations in the oceans, which results in improved environmental monitoring. Since 1850 the pH value of the world’s ...

  • Are the world’s oceans on the brink of disaster?

    An international panel of marine experts warns in a report released today that the world's ocean is at high risk of entering a phase of extinction of marine species unprecedented in human history. The preliminary report arises from the first ever interdisciplinary international workshop to consider the cumulative impact of all stressors affecting the ocean. Considering the latest research across ...


    By GLOBE Foundation

  • CO2 removal cannot save the oceans

    Greenhouse-gas emissions from human activities do not only cause rapid warming of the seas, but also ocean acidification at an unprecedented rate. Artificial carbon dioxide removal (CDR) from the atmosphere has been proposed to reduce both risks to marine life. A new study based on computer calculations now shows that this strategy would not work if applied too late. CDR cannot compensate for ...


    By GLOBE Foundation

  • Marine economy sinks as ocean acidity rises

    The waters off the US state of Alaska are some of the best fishing grounds anywhere, teeming with salmon and with shellfish such as crab. But a new study, funded by the US National Oceanic and Atmospheric Administration (NOAA), says growing acidification of Alaska’s waters, particularly those off the southern coast, threatens the state’s whole economy − largely dependent on the ...


    By GLOBE Foundation

  • Scientists confirm oceans acidifying at unprecedented speed

    The acidification of the world’s oceans, caused by the absorption of huge volumes of carbon dioxide, is accelerating at an unprecedented rate, threatening marine ecosystems and the livelihoods of tens of millions of people, concluded scientists attending the Second International Symposium on the Ocean in a High CO2 World held in Monaco from 6-9 October. The meeting, attended by 250 marine ...


    By UNESCO

  • Record Greenhouse Gas Levels Impact Atmosphere and Oceans

    The amount of greenhouse gases in the atmosphere reached a new record high in 2013, propelled by a surge in levels of carbon dioxide. This is according to the World Meteorological Organization’s annual Greenhouse Gas Bulletin, which injected even greater urgency into the need for concerted international action ...

  • New era dawns for world’s oceans via EPOCA

    Last June, the EU’s largest research consortium to combat ocean acidification was launched. The European Project on Ocean Acidification (EPOCA) combines over 100 scientists from 27 organisations in 9 countries. Its aim is to document ocean acidification and investigate its impact on biological processes. Based on this information the project can then predict its consequences for the next 100 ...

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