Final answer:
The United States and China are the top polluting countries, with other affluent nations like Qatar, Kuwait, the United Arab Emirates, Canada, and Australia also being major contributors to global CO₂ levels.
Explanation:
The countries that produce the most pollution are the United States and China, which are the biggest emitters of CO₂. Other major polluters include affluent countries like Qatar, Kuwait, the United Arab Emirates, Canada, and Australia. Emissions from these countries significantly contribute to global CO₂ levels.
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