Earth without humans

This chart, appearing in an article titled Earth without humans by Alan Weisman shows the time it'll take for nature to reclaim earth if humans vanish from the face of the planet today. Within 50 years, environment makes rapid progress towards recovery, in a 1000 years most man made structures will be gone and CO2 levels would be back to pre-industrial age levels. Nuclear ...

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Earth without humans

Local crab vs. the Helix Nebula

Posted on 24 August 2008

Local crab vs. the Helix Nebula
The former is a local crab. Discovered by me and will probably only ever get a mention in its lifetime in this post. Radius around 5 cm. The later is the Helix Nebula located 650 light-years away in constellation Aquarius. Discovered by Karl Ludwig Harding, probably before 1824. (according to wikipedia). Often been refered to as the eye of the God. Radius 2.87 light years. Image Courtesy NASA/JPL-Caltech. http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=sig07-016 The local crab is ...
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