单词	ozone hole
释义	ozone hole noun : an area of the ozone layer (as near the south pole) that is seasonally depleted of ozone Example Sentences Recent Examples on the Web The ozone hole that formed over Antarctica following the fires in 2020 was the longest-lasting and among the largest and deepest in decades, according to the World Meteorological Organization. Rachel Pannett, Washington Post, 25 Aug. 2022 But now a new study claims that a new, year-round ozone hole has been detected over Earth’s tropics, potentially exposing billions of people to higher doses of dangerous ultraviolet radiation from the sun. Eric Mack, Forbes, 6 July 2022 Young notes that ozone levels in the stratosphere over the tropics have continued to decrease since the Montreal Protocol of 1987 phased out CFCs, but rejects the author’s notion of a new tropical ozone hole threatening the well-being of billions. Eric Mack, Forbes, 6 July 2022 The discovery of the Antarctic ozone hole did prove that CFCs have an effect on our atmosphere. Joshua Hawkins, BGR, 6 July 2022 The ozone hole is related to the Antarctic polar vortex, a band of swirling cold air that moves around the Earth. Jeevan Ravindran, CNN, 16 Sep. 2021 The Montreal Protocol was negotiated in the 1980s to address the ozone hole in the atmosphere by phasing out the production of ozone-depleting chemicals. Phil Mckenna And James Bruggers, The Courier-Journal, 4 Oct. 2021 This year’s ozone hole over Antarctic is much bigger than average at around 24 million square kilometers, a reflection of the vortex’s strength. Jason Samenow And Kasha Patel, Anchorage Daily News, 2 Oct. 2021 Copernicus Atmosphere Monitoring Service said Thursday that the ozone hole, which appears every year during the Southern Hemisphere spring, has grown considerably in the past week following an average start. NBC News, 16 Sep. 2021 See More Word History First Known Use 1986, in the meaning defined above
随便看	morainal moraine moraines morainic moral moral ambiguity moral authority moral compass moral compasses moral hazard moral imbecility moral influence theory moral insanity moral law moral philosophy moral re-armament moral sense moral support moral theology moral theory moral victory moral virtue morale moraler morales

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