Bull****. Mass extinctions are caused by impacts from space. Opposition to the impact model is rooted in Carl Sagan’s global warming agenda (he didn’t start it, because he never had an original idea, he just used it constantly) and Lyell’s gradualist ‘just so’ geology.
Global warming today mirrors conditions leading to Earth’s largest extinction event, UW study says
The Seattle Times | December 7, 2018 | By Evan Bush
Posted on 12/07/2018 10:19:28 AM PST by Oldeconomybuyer
http://www.freerepublic.com/focus/news/3711303/posts
'Cosmos' excerpt:
And yet we ravage the Earth at an accelerated pace, as if it belonged to this one generation, as if it were ours to do with as we please…. Our generation must choose. Which do we value more: short-term profits or the long-term habitability of our planetary home?…
The study of the global climate, the sun’s influence, the comparison of the Earth with other worlds, these are subjects in their earliest stages of development. They are funded poorly and grudgingly, and meanwhile we continue to load the Earth’s atmosphere with materials about whose long-term influence we are almost entirely ignorant.
Can you see the error? Sagan enters this topic with a clear animus against the profit motive and a pre-established belief that industrial civilization is “ravaging the earth.” These are the obvious cultural biases of a late-20th-century modern liberal. So he considers two alternative theories—that we are destroying the planet by cooling it down, or we are destroying the planet by heating it up—and calls for more government funding to figure out which is correct.