P1h Global Warming

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P1h Global Warming

  1. 1. The Ozone layer Earth’s sun-block
  2. 2. The ozone layer <ul><li>As well as heat and light, the Sun produces UV (______________) radiation </li></ul><ul><li>UV can be harmful to us as it can damage DNA in our _______, which can cause ________ _________ </li></ul>
  3. 3. The ozone layer <ul><li>3 things that help prevent UV damage to our skin: </li></ul>
  4. 4. The ozone layer <ul><li>A layer of ozone (O 3 ) high in the atmosphere absorbs much of the Sun’s harmful ___ radiation </li></ul><ul><li>Chemicals called CFCs destroy ozone meaning that… </li></ul>
  5. 6. Don’t confuse the ozone layer with what we are about to learn next!!
  6. 7. Global Warming
  7. 17. Which human and natural factors can alter the balance? (p32)

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