The end of the Messinian Salinity Crisis, caused by the closure of the Mediterranean and an overwhelming greenhouse effect causing it to slowly evaporate: a channel opens between the Atlantic and the Mediterranean, south of Gibraltar, in present-day Morocco. The Mediterranean Sea fills in just 36 years. Perhaps as little as two years, with peaks of 10 meters per day. A catastrophic flood, of unprecedented proportions, perhaps the largest our planet has ever known.
