Planetary Boundaries Framework: Circular Economy Learning
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Questions and Answers

What is the concentration of atmospheric carbon dioxide (CO2) that the planetary boundaries framework suggests should not be exceeded?

  • 200 parts per million (ppm)
  • 1000 parts per million (ppm)
  • 500 parts per million (ppm)
  • 350 parts per million (ppm) (correct)

    • What does the planetary boundaries framework identify as a critical boundary for maintaining the Earth system's resilience related to biodiversity and ecosystems?

  • Climate change impact on biodiversity
  • Human intervention in biodiversity and ecosystems
  • Loss of biodiversity and disruption of ecosystems (correct)
  • Increase in biodiversity and stability of ecosystems

    • What does the planetary boundaries framework identify as a critical boundary for maintaining the Earth system's resilience related to land use?

  • Conversion of natural ecosystems to human-dominated land uses (correct)
  • Industrial development in natural ecosystems
  • Expansion of urban areas without considering natural ecosystems
  • Preservation of natural ecosystems without human intervention

    • What does the planetary boundaries framework aim to guide in human development?

    <p>Maintaining Earth system's resilience and accommodating societal growth</p> Signup and view all the answers

    What does the research article introduce as a science-based analysis of risks posed to the Earth system at a planetary scale?

    <p>Planetary boundaries framework</p> Signup and view all the answers

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