releasing chlorine atoms that destroy ozone molecules. These findings were alarming. The Earth's ozone layer functions as the planet's natural shield against harmful UV radiation, exposure to ...

The stratospheric ozone layer has undergone severe depletion as ... In contrast to chemicals containing chlorine and bromine, nitrogen oxides destroy ozone globally between 25 and 35 km.

So, a single chlorine atom can destroy thousands of ozone molecules. And because CFCs are removed very slowly from the atmosphere, their ozone-depleting power persists for decades after they are ...

Essentially the ozone layer absorbs the Sun’s most harmful ... One atom of chlorine could destroy more than 100,000 ozone molecules, which meant that it was disappearing faster than it could ...

New research has now shown that these compounds can actually change the composition of gases in the upper atmosphere, and potentially even destroy ozone in this atmospheric layer. Scientists ...

This generates stratospheric clouds that destroy the ozone layer by reacting with CFC gases, banned by the 1987 Montreal Protocol. In recent days, the polar vortex has broken up and weakened.

These can trigger processes that destroy Earth's protective ozone layer. Additionally, satellites burning up in the Earth's atmosphere release metals such as aluminum. The article also recalls ...

When CFCs undergo photolysis, they release reactive chlorine, which catalytically destroys ozone in the stratosphere — and that’s what led to as much as a 50% depletion in the ozone layer over ...