THE ENVIRONMENT

12345678
Across
  1. 1. one of the biggest polluters
  2. 4. landfills are the source of
  3. 6. an international treaty on climate change
  4. 8. one of the greenhouse gasses
Down
  1. 2. cutting emission as closeto zero as possible
  2. 3. the superordinate word (slovo nadřazené) for oil, coal and gas
  3. 5. change in the Sun's activity measured by observing the sunspots
  4. 7. something that is buried at landfills