There, sulfate aerosols (from industrial pollutants as well as volcanoes) attract the water molecules like a sponge and, plumped up, provide a bed for chemical reactions that destroy ozone.

This mechanism has been designed to prevent ... aluminium oxide can act as a catalyst for chemical reactions that involve chlorine, much like the process that led to ozone depletion from ...

These clouds accelerate chemical reactions ... a minor ozone reduction significantly increases UV-B radiation, heightening the risks to human health and ecosystems. Caused by chlorofluorocarbons ...

The 'ozone hole ... to initiate a chain reaction that breaks down ozone. The Montreal Protocol, adopted in 1987, regulated the manufacture, consumption, and trade of CFCs and other chemicals ...

The ozone layer over Antarctica, damaged by air pollution decades ago, has fortunately been recovering in recent years. Scientists have observed gradual ozone restoration since the 2000s, but now, one ...

This mechanism elucidates the natural processes governing ozone generation and consumption in the ... Considering catalytic depletion reactions by chlorine from CFCs and NO x, but with negligible ...

The stratospheric ozone layer absorbs harmful ultraviolet (UV) radiation and is therefore a vital protection layer to living creatures on the Earth’s surface. However, cosmic rays (CRs) from deep ...

The hole in Earth's ozone layer — which made headlines ... chemicals is difficult since there are no known reactions that would produce CFC-13 as a byproduct. The researchers focused on only ...

Thirty years after countries agreed to ease up on the use of chemicals damaging the ozone layer, there are promising signs that the ozone will be fully recovered by the 2060s. But we’re not out ...

A recent increase in a number of ozone-depleting chlorofluorocarbons (CFCs) poses a climate threat, scientists say. Five ozone-depleting chlorofluorocarbons significantly increased in the Earth ...

Chlorofluorocarbons, or CFCs, are a group of chemicals that were widely banned because of their effects on the ozone layer. Unknown sources are ... are associated with the production of other ...

The concentrations of some ozone-depleting chlorofluorocarbons (CFCs) in the atmosphere are increasing rapidly, scientists warn, despite the production of these chemicals having been banned ...