The doomster cult strikes again, this time picking on O3 rather than CO2. From researchers at University of Southhampton, Erosion of ozone layer responsible for mass extinction event published at ScienceDaily. Excerpts in italics with my bolds.
Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth’s plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation.
This is a newly discovered extinction mechanism with profound implications for our warming world today.
Now, scientists have found evidence showing it was high levels of UV radiation which collapsed forest ecosystems and killed off many species of fish and tetrapods (our four limbed ancestors) at the end of the Devonian geological period, 359 million years ago. This damaging burst of UV radiation occurred as part of one of the Earth’s climate cycles, rather than being caused by a huge volcanic eruption.
The ozone collapse occurred as the climate rapidly warmed following an intense ice age and the researchers suggest that the Earth today could reach comparable temperatures, possibly triggering a similar event. Their findings are published in the journal Science Advances.
Remember when scientists discovered things that made life better and brought hope and possibilities for the future? Remember when data was consulted before announcing an apocalypse? Look at the chart below and ask yourself if the warming periods are getting longer and hotter in our Holocene period.
And if you are worried about the ozone layer, here’s some good news from NASA.