http://dotearth.blogs.nytimes.com/2013/03/07/scientists-find-an-abrupt-warm-jog-after-a-very-long-cooling/
The New York TImes
Climate change has been rapid and extreme in last 11,000 years

<p style="margin-left:20px"><a href="https://www.harvardmagazine.com/2002/11/the-great-global-experim-html " target="_blank"> <img src="https://harvardmagazine.com/sites/default/files/HM_forWebRedesign_final.png" alt="View related Harvard Magazine article" title="View related Harvard Magazine article">Read more on this topic in <span style="font-style:italic; font-weight:600;">Harvard Magazine</span></a></p>