Scientists can measure the amount of carbon dioxide released by burning fossil fuels. They have discovered that increases of carbon dioxide in the atmosphere (A) are lower than expected, leading them to the conclusion that some of it is dissolving in the oceans (B).
This phenomenon is known as oceanic carbon uptake, where the oceans absorb and dissolve a significant amount of carbon dioxide from the atmosphere. The dissolution of carbon dioxide in the oceans can have various environmental implications, including ocean acidification, which can impact marine ecosystems.
The quantity of carbon dioxide emitted during the combustion of fossil fuels may be measured by scientists. They came to the conclusion that part of the carbon dioxide is dissolving in the seas after finding that the increases in the atmosphere are smaller than anticipated.