Hominins were responsible for the
massive destruction of the terrestrial
ecology, especially in Africa, when their
activities brought about the ice-ages.
Paul Crowley wrote:
Hominins were responsible for the
massive destruction of the terrestrial
ecology, especially in Africa, when their
activities brought about the ice-ages.
Bull & shit.
Plate tectonics ushered in the Quaternary Period. It was the
creation of the Isthmus of Panama, changing the currents,
changing the way the energy of the sun (falling along the
equator) gets distributed across the earth.
This is why Antarctica froze over. Even today it's far colder
than can be accounted for simply by its location at the south
pole. The issue is the formation of the circumpolar current,
which was allowed to form only after it broke off from South
America. Effectively it's a curtain, "Protecting" the continent
from warmer waters arriving from the equator.
Well. They wouldn't be all that warm by the time they reached
it, but still warmer. And with all that energy reaching the south
pole, it would be warmer.
All that in the context of increased CO2 removal from the atmosphere
by continental silicate weathering during the Cenozoic, moving the
Earth from Eocene hothouse to Plio-Pleistocene icehouse.
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