“The Climate-Change Event Horizon” –MIT Scientist Predicts the Tipping Point for Earth’s 6th Mass Extinction (WATCH Today’s ‘Galaxy’ Stream)

  In the past 540 million years, the Earth has endured five mass extinction events, each involving processes that upended the normal cycling of carbon through the atmosphere and oceans. These globally fatal perturbations in carbon each unfolded over thousands to millions of years, and are coincident with the widespread extermination of marine species around … Continue reading “The Climate-Change Event Horizon” –MIT Scientist Predicts the Tipping Point for Earth’s 6th Mass Extinction (WATCH Today’s ‘Galaxy’ Stream)