Earlier this year, researchers offered a hypothesis aiming to solve one of science’s enduring mysteries: what happened at the end of the Permian period to cause the worst of the five mass extinctions in Earth’s history. Methane-spewing Microbe Blamed in Earth’s Worst Mass Extinction:
A microbe that spewed humongous amounts of methane into Earth’s atmosphere triggered a global catastrophe 252 million years ago that wiped out upwards of 90 percent of marine species and 70 percent of land vertebrates.
The scale of this calamity made the one that doomed the dinosaurs 65 million years ago – a six-mile wide asteroid smacking the planet – seem like a picnic by comparison.
“I would say that the end-Permian extinction is the closest animal life has ever come to being totally wiped out, and it may have come pretty close,” said Massachusetts Institute of Technology biologist Greg Fournier, one of the researchers.
I don’t mean to alarm you, but it is happening again. Vast methane ‘plumes’ seen in Arctic ocean as sea ice retreats:
Dramatic and unprecedented plumes of methane – a greenhouse gas 20 times more potent than carbon dioxide – have been seen bubbling to the surface of the Arctic Ocean by scientists undertaking an extensive survey of the region.
The scale and volume of the methane release has astonished the head of the Russian research team who has been surveying the seabed of the East Siberian Arctic Shelf off northern Russia for nearly 20 years.


