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Tuesday, September 28, 2010

Estimated times of the disappearances of Man's traces:

  • Immediately- Most endangered species start recovering
  • 24-48 hours- light polution ended
  • 3 months- Air pollution (nitrogen and sulfur oxides) lessens
  • within 10 years- Methane in atmosphere gone
  • Within 20 years- Rural Roads and vilages overgrown, GM crops disappear.
  • Within 50 years- Fish stocks recover, Nitrate and phosphates in fresh water gone.
  • 50-100 years- Urban streets and buildings overgrown.
  • 100 years- Wooden buildings decay.
  • 100-200 years- Bridges collapse
  • within 200 years- Metal and Glass buildings collapse, US grain belt returns to prairie.
  • Withinin 250 years- Dams collapse
  • Within 500 years- Corals regenerate.
  • 500-1000 years Organic Landfill waste mostly decayed.
  • 1000 years Most brick, stone and concrete buildings are gone, Carbon Dioxide in the atmosphere back to pre-industry levels
  • 50,000 years- Most glass and plastic degraded.
  • After 50,000 years- Mankind's tenure is mostly marked by a few archaeological remains...
.... but some man-made chemicals only disappear after 200,000 years and nuclear waste can remain for up to 2,000,000 years!

8 comments:

  1. Well its good to know that the earth can repair itself.

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  2. If only it could happen...

    F/S!

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  3. Great book series (the world without us) on this, and I think a TV series (life after man?) too.
    Spooky!

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  4. If people would just stop being so selfish, the Earth could very easily repair itself.
    Latter can't happen without the former, sadly.

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  5. Very thought-provoking post bro!
    supporting and following~

    ReplyDelete