Seawater acidity

3-4 billion years ago, the pH level of the ocean was between 6.0 and 7.5 - something between cow's milk and human blood. Source: pixabay.com.

In the beginning the sea was acidic

Bleaching of corals as a result of the increase in seawater acidity as a result of the absorption of carbon dioxide by the oceans. Tropical species such as corals will be the first to reach the point of extinction, if we don't stop the emissions. Social changes are also expected according to an article published in Nature on September 10, 2013. Camilo Mora and colleagues. Photo: Yoko Stadner, one of the members of the research team

The effect of warming on life in the sea