Nov 4, 2017
Ozone hole over Antarctica shrinks to smallest peak since 1988
Posted by Dan Kummer in categories: biotech/medical, geopolitics, treaties
Ozone is a colorless combination of three oxygen atoms. High in the atmosphere, about 7 to 25 miles above the Earth, ozone shields Earth from ultraviolet rays that cause skin cancer, crop damage and other problems.
Scientists at the United Nation a few years ago determined that without the 1987 treaty there would have been an extra 2 million skin cancer cases by 2030. They said overall the ozone layer is beginning to recover because of the phase-out of chemicals used in refrigerants and aerosol cans.
Continue reading “Ozone hole over Antarctica shrinks to smallest peak since 1988” »