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  2. Ocean acidification - Wikipedia

    en.wikipedia.org/wiki/Ocean_acidification

    Ocean acidification is the ongoing decrease in the pH of the Earth's ocean. Between 1950 and 2020, the average pH of the ocean surface fell from approximately 8.15 to 8.05. [2] Carbon dioxide emissions from human activities are the primary cause of ocean acidification, with atmospheric carbon dioxide (CO 2) levels exceeding 422 ppm (as of 2024 ...

  3. Estuarine acidification - Wikipedia

    en.wikipedia.org/wiki/Estuarine_acidification

    In the ocean, wave and wind movement allows carbon dioxide (CO 2) to mixes with water (H 2 O) forming carbonic acid (H 2 CO 3). Through wave motion this chemical bond is mixed up, allowing for the further break of the bond, eventually becoming carbonate (CO 3) which is basic and helps form shells for ocean creatures, and two hydron molecules.

  4. Ocean acidification in the Great Barrier Reef - Wikipedia

    en.wikipedia.org/wiki/Ocean_acidification_in_the...

    Similar to other coral reefs, it is experiencing degradation due to ocean acidification. Ocean acidification results from a rise in atmospheric carbon dioxide, which is taken up by the ocean. [1] [2] This process can increase sea surface temperature, decrease aragonite, and lower the pH of the ocean. The more humanity consumes fossil fuels, the ...

  5. Human impact on marine life - Wikipedia

    en.wikipedia.org/wiki/Human_impact_on_marine_life

    The types of marine pollution can be grouped as pollution from marine debris, plastic pollution, including microplastics, ocean acidification, nutrient pollution, toxins and underwater noise. Plastic pollution in the ocean is a type of marine pollution by plastics , ranging in size from large original material such as bottles and bags, down to ...

  6. Environmental issues with coral reefs - Wikipedia

    en.wikipedia.org/wiki/Environmental_issues_with...

    The dissolved gas reacts with the water to form carbonic acid, and thus acidifies the ocean. This decreasing pH is another issue for coral reefs. [6] Ocean surface pH is estimated to have decreased from about 8.25 to 8.14 since the beginning of the industrial era, [69] and a further drop of 0.3–0.4 units is expected. [70] This drop has made ...

  7. Marine chemistry - Wikipedia

    en.wikipedia.org/wiki/Marine_chemistry

    The types of marine pollution can be grouped as pollution from marine debris, plastic pollution, including microplastics, ocean acidification, nutrient pollution, toxins and underwater noise. Plastic pollution in the ocean is a type of marine pollution by plastics , ranging in size from large original material such as bottles and bags, down to ...

  8. Effects of climate change on oceans - Wikipedia

    en.wikipedia.org/wiki/Effects_of_climate_change...

    Warm water corals are clearly in decline, with losses of 50% over the last 30–50 years due to multiple threats from ocean warming, ocean acidification, pollution and physical damage from activities such as fishing, and these pressures are expected to intensify. [97] [82]: 416

  9. File:Impacts of ocean acidification (NOAA EVL).webm

    en.wikipedia.org/wiki/File:Impacts_of_ocean...

    Initially, many scientists focused on the benefits of the ocean removing this greenhouse gas from the atmosphere. However, decades of ocean observations now show that there is also a downside — the CO 2 absorbed by the ocean is changing the chemistry of the seawater, a process called ocean acidification. This change in the ocean’s chemistry ...