 What does all of humanity's incineration of carbon fuels do to our rapidly dying seas? As already mentioned in this broadcast from theconversation.com, as ocean surfaces acidify, a deep sea acidic zone is expanding. Marine habitats are being squeezed. They're not just being squeezed, they're being wiped out. 500 dead zones in the oceans around the world expanding rapidly. Oceans are acidifying, stratifying, deoxygenating.