Can you (a) back this up and (b) explain why it's relevant?
http://en.wikipedia.org/wiki/Little_Ice_Age
It would suggest that the climate fluctuates even during periods where carbon emissions from humans was far less than today.
It has been warmer before on Earth while people have been around. There have been articles as early from 2003 I can find in the Telegraph but like all views not following the "common consensus line" they are mocked, derided, or ignored.
From where tree lines ended on some mountains covered by snow, to the Vikings being able to navigate areas of the ocean that have ice this day. From where crops were grown then to today, there are many identifiable items from that period which point to a warmer climate than any we have.
If anything this article could read, 1 billion dollar network goes up against the 1 trillion or more dollar Global Warming industrial machine. There is a lot of money in GW and those making it don't want it threatened.
It is relevant but it is not "proof" of anything on it's own, aside from the Earth's climate can shift substantially within short periods without any human contributions.