Ozone layer - Wikipedia
The ozone layer or ozone shield is a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet radiation. It contains a high concentration of ozone (O 3 ) in relation to other parts of the atmosphere, although still small in relation to other gases in the stratosphere.
What is the ozone layer, and why is it important? - Our World ...
2023年3月13日 · The stratosphere includes the zone commonly called the ‘ozone layer’. It plays a crucial role in keeping the planet habitable by absorbing potentially dangerous ultraviolet (UV-B) radiation from the sun. Before its depletion, the ozone layer typically absorbed 97 to 99% of incoming UV-B radiation.
Ozone layer | Description, Importance, & Facts | Britannica
2024年12月4日 · ozone layer, region of the upper atmosphere, between roughly 15 and 35 km (9 and 22 miles) above Earth’s surface, containing relatively high concentrations of ozone molecules (O 3).
What is it the ozone layer, why was it damaged, and what's ...
2023年1月14日 · The ozone layer has been damaged over many years, in part due to chemicals called CFCs. It stands for chlorofluorocarbons, which are made up of chlorine, fluorine and carbon atoms.
Climate change: Ozone layer still well on track for full ...
2024年9月16日 · New evidence in the World Meteorological Organization’s (WMO) annual Ozone and UV Bulletin published on Monday reveals strong evidence that the ozone layer is well on track for a long-term...
Basic Ozone Layer Science | US EPA - U.S. Environmental ...
2024年9月17日 · Learn about the ozone layer and how human activities deplete it. This page provides information on the chemical processes that lead to ozone layer depletion, and scientists' efforts to understand them.
Ozone layer facts and information - National Geographic
2023年1月10日 · What is the ozone layer, and why does it matter? Human activity has damaged this protective layer of the stratosphere, but scientists say the ozone layer is on track for recovery.
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