Huffington Post: Several of my friends and family members have had skin lesions biopsied in the past few years. Luckily they have been cancer-free, but these test results could have been much more alarming if the international community had not signed the Montreal Protocol to save the ozone layer 25 years ago this month.
The ozone layer blocks the sun’s cancer-causing ultraviolet rays. Scientist discovered nearly 40 years ago that CFCs were eating away at this protective layer, exposing every person on Earth to…

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