UV Radiation May Have Ended The Devonian

[Scylla]

Next time someone asks why study fossils, show them this. If they still don't understand, then just walk away slowly shaking your head. Studies of 360 million year old spores indicates that loss of the ozone layer and increased UV Radiation May explain the end Devonian extinction event. This ozone loss came about because warming led to higher levels of naturally occurring ozone depleting chemicals. This has direct implications for our current global extinction event. Oh, and there is a shark fossil too.

 

https://phys.org/news/2020-05-erosion-ozone-layer-responsible-mass.html

[Tidgy's Dad]

And then they say, "Oh, you collect spores, do you?"

Ermmm.

[andy_mnemonic]

1 hour ago, Tidgy's Dad said:

And then they say, "Oh, you collect spores, do you?"

Ermmm.

 

I collect spores, molds, and fungus.

[Scylla]