Environmental issues

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Across
  1. 5. A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms.
  2. 6. The Greenhouse effect produces an increase of this
  3. 7. Long period when there is little or no rain
  4. 8. Species that may soon not exist because climate change or other ressons
  5. 9. The action or process of converting waste into reusable material
  6. 10. An increase of temperature of the Earth
Down
  1. 1. Chopping down trees causes this
  2. 2. The variety of species on Earth
  3. 3. Large amount of water specially in a way that causes problems
  4. 4. The second main gas responsible for the greenhouse effect