Often hailed as the most successful international environmental agreement of all time, the 1987 Montreal Protocol continues ...

This year’s ozone hole over Antarctica ranked among the smallest since the early 1990s, reflecting steady progress from decades of global action under the Montreal Protocol. Declining chlorine levels ...

Just a few decades ago, the sky above Antarctica became a symbol of environmental crisis. Scientists had discovered a massive hole in the ozone layer-a protective shield in Earth's atmosphere that ...

“In 2015, scientists at NASA predicted that the Ozone Hole would be half closed by 2020. That hasn’t happened. Other scientists have forecasted that the hole will not begin to disappear until 2040 or ...

A new MIT-led study confirms that the Antarctic ozone layer is healing, as a direct result of global efforts to reduce ozone-depleting substances. Scientists including the MIT team have observed signs ...

Research suggests that rocket exhaust and debris could be threatening the ozone layer, though many uncertainties persist.

Remember the hole in the ozone? (TIME magazine does.) Thanks largely to the unchecked use of chemicals like chlorofluorocarbons (CFCs) and halons in the postwar era, the ozone layer thinned ...