Greenhouse Icehouse -Toxic Ocean Conditions And Extinction 93.9 Million Years Ago
Tuesday, October 29, 2013 - 10:20
in Earth & Climate
After oxygen in the atmosphere and ocean rose about 600 million years ago, earth got the first proliferation of animal life. Between then and now, numerous short lived biotic events took place when oxygen concentrations in the ocean dipped episodically. read more