Violent supernovae 'triggered at least two Earth extinctions' At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions, a new study suggests. Researchers at Keele Universi...

Arguing on #ClimateChange, them proven wrong on #oceans, #SolarCycles and others, they INSISTED #MassExtinctions were caused by #CO2

Recently reported sharp CO2 rise 35 million years ago had no affect on #climate, now 'at least' two extinctions were #supernnovae?

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