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Greenhouse Extinctions

In the first half of the program, George Knapp welcomed author Bill Friedman, who recounted inside stories about the organized crime origins of the Las Vegas Strip. In the latter half, investigative journalist Toby Rogers (book link) shared the untold story of mafia legend Silvio Eboli, a Genovese mob scion who developed an ongoing organized crime operation which involves the sale of marijuana throughout the New York metropolitan area.

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Greenhouse Extinctions

Show Archive
Date: Saturday - May 26, 2007
Host: Art Bell
Guests: Peter Ward

Professor of Earth and Space Sciences and Astrobiologist for NASA, Peter Ward (Book Link) discussed his vision of the end of the world based on past mass extinctions.

While most scientists agree that a meteor impact killed the dinosaurs 65 million years ago, Ward said our planet's 15 other ancient mass extinctions were caused by short-term global warming. According to Ward, high levels of CO2 increased global temperatures, contributing to conditions that gave rise to a series of bacteria in the oceans that produced toxic hydrogen sulfide gas. Eventually, this gas erupted into the atmosphere and poisoned animals and plants on the planet's surface.

Atmospheric CO2 is currently at 380 ppm and rising 2 ppm every year, Ward explained. He said the geological record indicates 'greenhouse extinctions' occur when CO2 levels go beyond 1000 ppm and when all the ice caps have melted. Ward estimated that we have 1000 years before this mass extinction process begins, unless we begin reducing man-made CO2 emissions now. In the meantime, we can expect a host of problems, including coastal flooding and food shortages, caused by rising sea levels, he warned.

Bumper Music

Bumper music from Saturday May 26, 2007

  • Time
    Alan Parsons Project
  • Time
    Hootie & the Blowfish
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