Ozone treaty taking a bite out of US greenhouse gas emissions

The Montreal Protocol, the international treaty adopted to restore Earth's protective ozone layer in 1989, has significantly reduced emissions of ozone-depleting chemicals from the United States. In a twist, a new study shows ...

Without the Montreal Protocol, more intense tropical cyclones

If the Montreal Protocol had been rejected and the risks of ozone depleting substances had been ignored by the world, we would be facing even more intense tropical cyclones in the near future, according to a new study in ...