Elizabeth Kolbert Quotes:
Ocupation: Journalist
Life: b. 1961
We can't say that when x happens we get a mass extinction. To the extent we understand mass extinction, one has been caused by glaciation event, one has been caused by a massive climate change, and one has been caused by an asteroid. These events turn out to have no precedent.
source: Source: www.motherjones.com
topic: Mass Extinction
