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Defending Planet Earth Near-Earth-Object Surveys and Hazard Mitigation Strategies (2010) / Chapter Skim
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Appendix D: Minority Opinion - Mark Boslough, Mitigation Panel Member
Pages 126-127

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From page 126...
... • Asteroids and climate change are the only two threats in the original table that can have abrupt and global consequences, and to which everyone on the planet is exposed, regardless of their lifestyle or personal behavior. They are also both to some extent preventable, and in both cases mitigation requires international agreements and cooperation.
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From page 127...
... The probability of impact by one of these before the end of the century is 0.0005 percent. However, recent models5,6 suggest a 2 percent probability of global catastrophe from anthropogenic climate change this century, assuming realistic greenhouse gas emissions scenarios and a threshold temperature change or sensitivity of 8°C.
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Key Terms

  • death rate
  • geophysical union
  • abrupt climate
  • anthropogenic climate
  • original table

  • climate sensitivity
  • asteroid death
  • implicitly assumes
  • change threat
  • change catastrophe

  • model feedbacks
  • expected annual
  • astronautics planetary
  • space agency
  • change estimate

  • gas emissions
  • century climate
  • asteroid impacts
  • temperature change
  • dryas boundaries

  • international academy
  • change distract
  • include increasing
  • strong dependence
  • fall meeting

  • conservative assumptions
  • realistic greenhouse
  • catastrophe exceeds
  • change comparable
  • climate data


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