Summary:

- The article discusses the issue of ocean acidification and its impact on marine biodiversity. Ocean acidification is caused by the absorption of excess carbon dioxide from the atmosphere, which leads to a decrease in the pH levels of the ocean.

- The article explains that as the ocean becomes more acidic, it can negatively affect the growth and survival of many marine organisms, particularly those with calcium-based shells or skeletons, such as corals, shellfish, and plankton.

- The article highlights the importance of addressing ocean acidification to protect marine ecosystems and the biodiversity they support, which are crucial for the overall health of the planet and the well-being of human communities that rely on the ocean's resources.