The Mudcat Café TM
Thread #168576 Message #4072868
Posted By: Donuel
23-Sep-20 - 10:16 AM
Thread Name: BS: OZ US Amazon Siberian FIre
Subject: RE: BS: OZ US Amazon Siberian FIre
21% of O2 comes from trees.
Global fires have left multiple black stripes in sedimentary rock revealing that it has happened many times before. The biggest widest black deposits are from large asteroids that measured in kilometers.
Fires of millions of acres may not leave soil traces as big as one might expect but explain what happened to some lost ancient civilizations.
I was surprised that O2 levels were lower in the Dinosaur ages.
Large lung capacities may have been an adaptation. Tibetan sherpas are said to have Denosovian DNA who had enormous lung capacites as well.