clipped from: www.dailygalaxy.com   
Ozone_hole_recovery

Fast forward to 2065: if unchecked (blue image above), nearly two-thirds of the Earth’s ozone is gone—not just over the poles, but everywhere. The infamous ozone hole over Antarctica, is now a year-round phenomena on Planet Earth, with a twin over the North Pole. The ultraviolet (UV) radiation falling on mid-latitude cities like Washington, D.C., is strong enough to cause sunburn in just five minutes. DNA-mutating UV radiation is up more than 500 percent, with likely harmful effects on plants, animals, and human skin cancer rates.


This is world we would inhabit -“what might have been” - if chlorofluorocarbons (CFCs) and similar chemicals had not been banned through the 1989 Montreal Protocol, the first-ever international agreement on regulation of ozone-depleting chemical pollutants, according to atmospheric chemists from NASA’s Goddard Space Flight Center, the Johns Hopkins University, and the Netherlands Environmental Assessment Agency