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Resource: used or used up in processesChlorofluorocarbons
Appears in 1 process and 4 steps. Everything below is linked: open a process to see it in context.
Top processes
- Cutting ozone-depleting gases under the Montreal Protocol lets ozone return to 1980 levels around 2040 globally, 2045 in the Arctic and 2066 over Antarctica
- Catalytic cycles of chlorine, bromine, nitrogen and hydrogen oxides destroy ozone: one chlorine atom can remove thousands of ozone molecules, and gas-phase chlo
- In polar winter below about -78 C polar stratospheric clouds form; reactions on them free chlorine as ClO, and spring sunlight then destroys about half the ozon
- and 1 more in this process
Often found with
Stratosphere 4Ozone 4Humans 2Chlorofluorocarbons 1Nitrogen oxides 1Polar stratospheric clouds 1Antarctica 1Volcanoes 1
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