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