Climate change

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Across
  1. 3. The point when climate change is irreversible
  2. 5. During the middle ages people were able to live here
  3. 7. These are dark spots that appear on the sun's surface
  4. 9. This type of feedback diminishes climate change
  5. 10. This type of solar radiation warms the earth
  6. 11. Material is ejected from these into the stratosphere
Down
  1. 1. These types of cores are well preserved by the sea
  2. 2. This type of radiation is often trapped by greenhouse gases
  3. 4. This ocean current warms Western Europe
  4. 6. This type of feedback amplifies climate change
  5. 8. This type of proxy records allows gases to be preserved
  6. 12. This material reflects solar energy back into space