September 8, 2011

Aliens May Destroy Humans To Save Others

http://www.guardian.co.uk/science/2011/aug/18/aliens-destroy-humanity-protect-civilisations

Aliens may destroy humanity to protect other civilisations, say scientists
Rising greenhouse emissions could tip off aliens that we are a rapidly expanding threat, warns a report
Ian Sample, science correspondent
guardian.co.uk
Thursday 18 August 2011 19.04 BST

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