A new MIT-led study confirms that the Antarctic ozone layer is healing, as a direct result of global efforts to reduce ...
CFCs and similar compounds are mostly inert (nonreactive ... Sunlight cooks the polluting chemicals in the air, catalyzing chemical reactions that make ozone. Smog levels tend to be highest in the ...
CFCs are chemically stable ... It is known that these chlorine atoms act as catalysts to initiate a chain reaction that breaks down ozone. The Montreal Protocol, adopted in 1987, regulated ...
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 ...
When CFCs drift up into the stratosphere ... Closer to the ground, ozone can also be created by photochemical reactions between the sun and pollution from vehicle emissions and other sources ...
What is the Ozone Layer? The ozone layer is a crucial component of Earth's stratosphere, located between 19 and 30 km above ...
When CFCs drift up into the stratosphere, they can break down ozone under certain seasonal conditions. The following year, those relevations led to the drafting of the Montreal Protocol — an ...
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