9 years ago
3
Humans creating sixth great extinction of animal species, say scientists
Study reveals rate of extinction for species in the 20th century has been up to 100 times higher than would have been normal without human impact
Continue Reading http://www.theguardian.com
Additional Contributions:
Join the Discussion
[This comment was removed]
"Modern rates of extinction were eight to 100 times higher"., quite a spread.