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Earth: Extinctions & Climate

Captain Randy Cramer claims to be an officer who has been given authorization to address the public on behalf of a covert "special section" of the United States Marine Corps. He joined guest host Jimmy Church (email) to discuss his 17-year tour of duty off-world on Mars, and his years serving aboard a secret space fleet.

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Earth: Extinctions & Climate

Show Archive
Date: Wednesday - March 12, 2008
Host: George Noory
Guests: Peter Ward

Appearing during the first three hours, Prof. Peter Ward, the author of Under a Green Sky, discussed his latest work on hydrogen sulfide extinctions, and how we are creating the circumstances for extinctions in the future. His research has connected past mass extinctions and global warming. Greenhouse gases and the melting of the ice-caps could create a dangerous situation where the ocean currents stop circulating. The stagnation of the oceans' waters would lead to the thriving of a type of bacteria that produces hydrogen sulfide. Killing off life in the ocean and sending toxic gases into the atmosphere, hydrogen sulfide could actually turn the sky green, he noted.

The coast off of Namibia is a hydrogen sulfide "hot spot" and the eruptions can be seen in this NASA satellite photo. Curiously, it has been found that hydrogen sulfide can have startling medical benefits, putting injured people into a kind of suspended animation until they can be treated. For more on hydrogen sulfide, see this Wired interview with Ward.

He also talked about how the melting of ice and subsequent rise of sea levels will flood coastal cities. There'll be enormous costs associated with moving cities and infrastructure to inland locations, and the influx of saltwater could wipe out agriculture, he warned.

The last hour of the show featured Open Lines.

Bumper Music

Bumper music from Wednesday March 12, 2008

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