- NASA scientist claims environmentally-minded aliens may kill all humans because of global warming. http://www.guardian.co.uk/science/2011/aug/18/aliens-destroy-humanity-protect-civilisations 38 comments nottheonion
- Aliens may destroy humanity to protect other civilisations, say scientists http://www.guardian.co.uk/science/2011/aug/18/aliens-destroy-humanity-protect-civilisations 9 comments reddit.com
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