Excerpt on Air
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The good news is: We still have air to breathe.
The bad news is: We may not have it much longer.

Today there is five times more chlorine in our atmosphere than there was in 1950.

Chlorofluorocarbons (CFCs)...are destroying the ozone layer, exposing the earth to intense ultraviolet radiation from the sun. This doesn't just produce skin cancer in people; it destroys things like leaves and plankton which fabricate the air we breathe and nourish the basic food chains of life.

Carl Sagan says that by destroying the ozone, 'We are tugging at a planet-wide biological tapestry and do not know whether one thread only will come out in our hands, or whether the whole tapestry will unravel before us."

 

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