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Across
  1. 5. The main greenhouse gas responsible for trapping heat in the atmosphere (8 letters)
  2. 7. Paris Agreement aims to combat this global issue (11 letters)
  3. 9. An economic system associated with private ownership and profit (9 letters)
  4. 10. A primary source of greenhouse gas emissions (4 letters)
  5. 11. The most polluting country in terms of carbon emissions (5 letters)
Down
  1. 1. Industries and factories often release this into the air and water (7 letters)
  2. 2. These energy sources are considered environmentally friendly (11 letters)
  3. 3. The most polluting element (4 letters)
  4. 4. The process of reducing, reusing, and recycling to minimize waste (11 letters)
  5. 6. The country that emitted the most carbon since the beginning (3 letters)
  6. 7. The 2015 international climate agreement held in Paris (5 letters)
  7. 8. A primary source of greenhouse gas emissions, especially in China (4 letters)
  8. 10. A natural process that contributes to global warming (7 letters)