Big Picture Science – Surviving the Anthropocene: David Grinspoon / Biological Inevitability

by Gary Niederhoff on February 22, 2015

Humans aren’t the first species to influence the earth’s climate. 2.5 billion years ago, the solar gluttony of cyanobacteria and resulting flood of oxygen emissions led to what is known as the Great Oxygenation Event.
David Grinspoon / Biological Inevitability
click to listen (trt 8:04)

Part 2 of Surviving the Anthropocene, featuring David Grinspoon, astrobiologist and senior scientist at the Planetary Science Institute in Tucson, Arizona, explaining how biological influence on global systems may threaten all planets that evolve sentient lifeforms.

{ 1 comment… read it below or add one }

avatar Blair February 24, 2015 at 11:58 am

it’s interesting to me that the universe has this inbuilt mechanism to filter out lower forms of life and consciousness.

any life that comes in to existence that doesn’t evolve the ability to defend itself from extinction threats will eventually encounter an asteroid or cause it’s own extinction.

if it can’t defend against that, it’s not likely it could become an interplanetary species.

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