Ozone depletion

{
  "id": "MLC-T-ENV-020097",
  "term": "Ozone depletion",
  "field": "Environment",
  "term_source": "Ozone Depletion",
  "definition": "1. Chemical destruction of the stratospheric ozone layer beyond natural reactions. Stratospheric ozone is constantly being created and destroyed through natural cycles. Various ozone-depleting substances (ODS), however, accelerate the destruction processes, resulting in lower than normal ozone levels. Because ozone absorbs UVB, less ozone will allow more of this harmful solar radiation to reach the Earth's surface. The science section of EPA's ozone depletion Web site offers much more detail on the science of ozone depletion.\n\n2. Destruction of the stratospheric ozone layer which shields the earth from ultraviolet radiation harmful to life. This destruction of ozone is caused by the breakdown of certain chlorine and/or bromine containing compounds (chlorofluorocarbons or halons), which break down when they reach the stratosphere and then catalytically destroy ozone molecules.\n\n3. Chemical destruction of the stratospheric ozone layer beyond natural reactions. Stratospheric ozone is constantly being created and destroyed through natural cycles. Various ozone-depleting substances (ODS), however, accelerate the destruction processes, resulting in lower than normal ozone levels. Because ozone absorbs UVB, less ozone will allow more of this harmful solar radiation to reach the Earth's surface.\n\n4. Destruction of the stratospheric ozone layer, which shields the Earth from ultraviolet radiation harmful to life. This destruction of ozone is caused by the breakdown of certain chlorine- and/or bromine-containing compounds (chlorofluorocarbons or halons). These compounds break down when they reach the stratosphere and then catalytically destroy ozone molecules.\n\n5. Chemical destruction of ozone molecules in the ozone layer.\n\n6. Destruction of the stratospheric ozone layer, which shields the Earth from ultraviolet radiation harmful to life. This destruction of ozone is caused by the breakdown of certain chlorine- and/or bromine-containing compounds (chlorofluorocarbons or halons). These compounds break down when they reach the stratosphere and then catalyze chemical reactions that destroy ozone molecules.",
  "subject": "Outcomes",
  "references": [
    "SunWise Program Glossary",
    "Terms of Environment",
    "EPA Report on the Environment Glossary at http://www.epa.gov/ncea/roe/glossary.htm",
    "Ozone Layer Protection Glossary",
    "Report on the Environment (ROE) Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/ozone-depletion/"
}