Warming oceans —caused by climate change —are typically the cause of coral bleaching. It can also be triggered by pollution, acidification, sedimentation, and changes in salinity or water quality.

If a change in ocean pH of 0.25 over a few hundred to a few thousand years following the Chicxulub impact caused such a dramatic die-off of marine life, the projected ocean acidification we could ...

Ocean acidification is mostly caused by the ocean absorbing CO 2. The ocean takes up around 30% of CO 2 in the atmosphere, so as human activities pump out CO 2, they are forcing more of it into ...