The protocol’s status as a climate treaty was enhanced by the 2016 Kigali Amendment — named for the Rwandan capital where the deal was drafted — which targeted a class of coolants that weren ...

As the ozone layer recovers, it’s also intensifying global warming. Researchers predict that by 2050, ozone will rank just ...

The Montreal Protocol was designed to heal the ozone layer. It may have also fended off several degrees of warming—and a collapse of forests and croplands. The world has already banded together ...

A new study reveals that the healing ozone layer could trap more heat, potentially increasing warming by 40% more than ...

The Montreal Protocol called for a complete ban on the use of HCFCs as refrigerants in developed countries from Jan. 1, 2020, due to their ozone-damaging potential, but there’s a loophole: HCFC ...

The Montreal Protocol regulates nearly 100 ozone-eating chemicals. Many fall under the umbrella of chlorofluorocarbons (CFCs), chemicals popularized in the 1930s for use in spray cans, plastic ...

In the U.S., Congress ratified the Montreal Protocol and in 1990 passed ozone amendments to the Clean Air Act. The Environmental Protection Agency rolled out a number of regulations and phased out ...

The Montreal Protocol is an international agreement designed to phase out the production and consumption of chemicals that deplete the ozone layer. Signed in 1987 and put into effect in 1989, the ...

The resulting Montreal Protocol, the only United Nations treaty ratified by every country in the world, was signed in 1987 and entered into effect in 1989, when little was known about its impact ...

Luckily, due to an unprecedented international treaty called the Montreal Protocol, the issue is improving, but as climate change worsens, there are still some reasons to be concerned.

That means the Montreal Protocol has helped slow the rampant melting of the Arctic, a new study finds. It’s likely already averted more than half a million square kilometers of sea ice losses ...

The Montreal Protocol is delaying the occurrence of the first ice-free Arctic summer. Proceedings of the National Academy of Sciences, 2023; 120 (22) DOI: 10.1073/pnas.2211432120 ...