Yet a recent report shows that by chemically manipulating the water on a vast scale, engineers could reverse ocean acidification. ... When seawater absorbs carbon dioxide, chemical reactions reduce the ocean's pH, making it more acidic.

What is being done to stop ocean acidification?

The most effective way to limit ocean acidification is to act on climate change, implementing solutions to dramatically reduce the use of fossil fuels. If we dramatically cut our global warming emissions, and we limit future warming, we can significantly reduce the harm to marine ecosystems.

Is ocean acidification reversible?

“Once the ocean is severely affected by high carbon dioxide, it is virtually impossible to undo these alterations on a human-generation timescale,” said Sabine Mathesius of the Potsdam Institute for Climate Impact Research in Potsdam, Germany.