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Earth: Extinctions & Climate

A remarkable discovery has emerged in astrophysics: key properties of the universe have just the right values to make life possible. Most scientists prefer to explain away this uniqueness, insisting that a number of unseen universes must therefore exist, each randomly different. Astrophysicist Bernard Haisch joined George Knapp in the first half of the show to propose the alternativeā€”that the special properties of our universe reflect an underlying intelligent consciousness.

In the second half of the program, veteran journalist Chris Taylor talked about how the Star Wars franchise has conquered our culture with a sense of lightness and exuberance, while remaining serious enough to influence politics, and spread a spirituality that appeals to religious groups and atheists alike.

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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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