UN: Depletion of ozone layer will be fixed in 40 years
8.91-million-square-mile hole in the ozone layer is closing
Webb Telescope reveals noxious atmosphere of a planet 700 light-years away
WASP-39b is a gas giant about the mass of Saturn and the size of Jupiter
Scientists predict the hole in the ozone layer will close in the next 50 years
In 1987, just seven years after scientists discovered man-made chemicals were damaging the ozone layer, the Montreal Protocol was signed