WASHINGTON – NASA scientists will join researchers from around the world to celebrate the 20th anniversary of the Montreal Protocol, an international treaty designed to reduce the hole in Earth’s ...

In the 1980s and 1990s, the world's governments came together in a rare show of cooperation to rid Earth's atmosphere of certain ozone-depleting substances (ODSs). Used mainly in air conditioning and ...

July 29, 2003 — NASA satellite observations have provided the first evidence the rate of ozone depletion in the Earth’s upper atmosphere is decreasing. This may indicate the first stage of ozone layer ...

The discovery of a hole in Earth’s protective ozone layer in 1985 led to a worldwide effort to heal it. But are there lessons that can be applied to today’s treaty talks on climate change? A worldwide ...

Forty years after global policymakers began grappling with the crisis posed by a gaping hole in Earth’s protective ozone layer over Antarctica, the damage is continuing to heal, according to a new ...