The knowledge of how climate change is real

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Across
  1. 4. Both the extent and thickness of Arctic Sea ice has?
  2. 6. How much has climate experiment Greenland lost in ice between 1993-2019
  3. 12. What does NOAA stand for?
  4. 13. The increase of acidity is due to what?
  5. 14. The planet average surface temperature has risen about?
Down
  1. 1. How much has be absorbed into the ocean
  2. 2. What has helped the scientists see the bigger picture of climate change?
  3. 3. How many cycles of ice ages and warmer period has there been in the last 800,000 years?
  4. 5. Most of the warming occurred in?
  5. 7. What have been the attributed to climate change?
  6. 8. Earth climate has changed throughout what?
  7. 9. What is the principal cause of earth warming up?
  8. 10. Greenland and Antarctic ice sheet have?
  9. 11. Global sea level rose about?