Is It Real?

• Evidence of Change
  • Temperatures
  • Oceans
  • Snow and Ice
  • Rain and Drought
  • Ecosystems
  • U.S. Regions
• The Human Element
  • CO₂
  • Other Greenhouse Gases
  • Are Humans the Cause?
• Extra Pieces
  • FAQs
  • Take Aways / References

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References