News article: <a href="http://www.bbc.co.uk/news/science-environment-17191398" rel="nofollow">http://www.bbc.co.uk/news/science-environment-17191398</a><p>Actual paper: <a href="http://www.nature.com/ncomms/journal/v3/n2/full/ncomms1701.html" rel="nofollow">http://www.nature.com/ncomms/journal/v3/n2/full/ncomms1701.h...</a>