Definition
Ocean acidification refer to the processes and factors that lead to a decrease in the pH levels of the Earth's oceans, making them more acidic.
Etymology
The term "acidification" originates from the Latin word "acidus," meaning sour or sharp. Combined with "ocean," it specifically refers to the process of becoming more acidic.
Example Usage
'Researchers are studying ocean acidification causes to understand their impact on marine ecosystems.'
Interesting Fact
Ocean acidification is happening at a rate faster than any time in the last 300 million years.
Source: NOAA
Explanation and Detail
Carbon Dioxide Absorption
The primary cause of ocean acidification is the absorption of atmospheric carbon dioxide (CO2) by ocean waters. When CO2 dissolves in seawater, it reacts with water to form carbonic acid. This process lowers the pH of the ocean, making it more acidic.
Industrial Activities
Burning fossil fuels for energy, deforestation, and cement production significantly increase atmospheric CO2 levels. The oceans absorb about 30% of this CO2, accelerating acidification.
Impact on Marine Life
Acidic waters can harm marine organisms, particularly those with calcium carbonate shells or skeletons, such as corals, mollusks, and some plankton species. This disruption in marine life can affect entire ecosystems and food webs.
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