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World 6 · Cost and Carbon · 11 min · PRO

Land, materials and trade-offs

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PRO · Energy Island

World 6: Cost and Carbon is part of PRO

The first world of Energy Island is free. PRO opens the other 20 lessons in 5 worlds — simulations, quizzes and all.

  • What does a kilowatt-hour cost?
  • Carbon per kilowatt-hour
  • Island report
PRO includes
  • All 60 labs — every world, every lesson
  • Practice exams and certificates

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