Ocean acidification and algal blooms are caused by changes in biogeochemical cycles due to human activities, impacting marine ecosystems.
Ocean acidification is caused by changes in the biogeochemical cycles of the planet, particularly due to the excessive uptake of carbon dioxide from the atmosphere, leading to a decrease in pH of marine environments. This alteration affects marine life, including coccoliths, nitrogen fixation, and higher trophic levels. Algal blooms are also a consequence of biogeochemical changes, such as eutrophication from high levels of nutrients like nitrogen and phosphorus, resulting in disruptive overgrowths of algae that deplete oxygen levels and harm aquatic ecosystems.
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