November 16: Andrew Knoll – “Mass Extinction”

Written By agnes portalewska

November 16: Andrew Knoll – “Mass Extinction”

One of the earth’s mass extinction events, where huge numbers of species disappeared all at once, was driven by volcanism that spewed carbon dioxide into the atmosphere, causing global warming, ocean acidification, and oxygen loss in the world’s waters.  Andrew Knoll asks, Does this sound familiar?

agnes portalewska
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October 19: Steven Pinker – “Rationality: What It Is, Why It Seems Scarce, Why It Matters”