CLIMATE CHANGE!!!!!!

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Across
  1. 4. What natural event can be worsened by climate change?
  2. 5. What phenomenon involves the gradual rise of sea levels?
  3. 6. What is melting due to rising global temperatures?
  4. 8. What gas is a major contributor to climate change?
Down
  1. 1. What type of energy is considered renewable?
  2. 2. What greenhouse gas is produced by cattle?
  3. 3. Human activity that kills trees?
  4. 7. What do we call the increase in Earth's average temperature?