This bbc article summarizes a few interesting points from the paper:<p><a href="http:&#x2F;&#x2F;www.bbc.com&#x2F;news&#x2F;science-environment-12378934" rel="nofollow">http:&#x2F;&#x2F;www.bbc.com&#x2F;news&#x2F;science-environment-12378934</a>