ozone hole

Old Air Conditioners And Refrigerators Are Keeping Us From Healing The Ozone Hole

Old Air Conditioners And Refrigerators Are Keeping Us From Healing The Ozone Hole

In the 1930s, manufacturers began using chlorofluorocarbons—greenhouse gases made up of carbon, chlorine, and fluorine—as refrigerants for air conditioners, aerosol sprays, refrigerators, freezers, and more. The problem is, those chemicals depleted the ozone layer of the atmosphere, which blocks the sun’s damaging ultraviolet rays. That ozone depletion caused warming in…

The Ozone Hole Is Finally Healing

The Ozone Hole Is Finally Healing

Nearly 30 years after an international treaty banned the use of chlorofluorocarbons, the Antarctic ozone hole is finally starting to heal. By mid to late century, it should be fully recovered.