• Scientists Build Case for 'Sixth Extinction' and Say It Could Kill Us https://www.nbcnews.com/science/environment/scientists-build-case-sixth-extinction-say-it-could-kill-us-n378586 4 comments 27/7/2022

• Scientists Build Case for 'Sixth Extinction' ... and Say It Could Kill Us http://www.nbcnews.com/science/environment/scientists-build-case-sixth-extinction-say-it-could-kill-us-n378586 7 comments 20/6/2015 worldnews

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