The Climate Crisis Quiz
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Questions and Answers

According to James Hansen, what is the potential consequence if we burn all reserves of oil, gas, and coal?

  • Boiling off water on Earth
  • Causing the Venus syndrome
  • Initiating the runaway greenhouse (correct)
  • Increasing the CO2 levels on Earth
  • What is the composition of Venus' atmosphere?

  • 96.5 percent carbon dioxide (correct)
  • 80 percent carbon dioxide
  • 90 percent carbon dioxide
  • 70 percent carbon dioxide
  • What is the key factor in James Hansen's argument about the warming effect of carbon dioxide?

  • Greenhouse effect
  • Positive feedback loop (correct)
  • Negative feedback loop
  • Evaporation from the ocean
  • What is the current level of CO2 on Earth?

    <p>Just now rising past 400 parts per million</p> Signup and view all the answers

    What is the potential consequence if the fossil-fuel burning process runs out of control, according to James Hansen?

    <p>Vaporizing Earth's water</p> Signup and view all the answers

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