Top Tweets for #MassExinctions
#SeaLevelRise is not what they say, has gone up and down as it warms and cools
As I keep telling people, as the '#PermaFrost' and #IceCaps wax and wane, then the sea-level changes as it has for millions of years
'#MassExinctions caused when it gets colder, not warmer'
ICYMI: @smithsonian #paleobiologist Doug Erwin on #massexinctions as cascading #ecosystem #collapse, comparing the #Permian #extinction to the #Cretaceous-#Paleogene boundary event to today's insults to #biodiversity at our annual #Science board meeting:
https://t.co/HRcf6SFM98
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