ozone layer:

The ozone layer, or ozonosphere, is a region of concentrated ozone in the outer stratosphere. It acts as the principal shield against dangerous ultraviolet radiation from the sun. The ozone layer was being damaged by the propellant gases in aerosol sprays and other chemicals released in certain kinds of manufacturing.…

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Happy Earth Day to all my Readers!Tuesday April 22, 2014

Happy Earth Day to all my Readers!

  NASA celebrated Earth Day by compositing this magnificent photograph of our home planet using data captured by the GOES-East satellite. In honor of Earth Day, I’d like to share this poem by Norman Nicholson.  THE MOTION OF THE EARTH A…

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