Global warming caused widespread ocean anoxia 93 million years ago, deep-sea sediments research suggests - Phys.org
phys.orgSubmitted by physorg8953 in science
Marine anoxia is characterized by the oceans being severely depleted in dissolved oxygen, making them toxic and thus having devastating impacts on the organisms inhabiting them. One such event, known as Oceanic Anoxic Event 2 (OAE2), occurred ~93.5 million ye…