

One important point is that the time period he talks about was not uniformly colder over that time period.

I did a quick reread to refresh my memory on many of the details that Brian Fagan went into. And what really stuck with me was that the increasing cold conditions doomed the Norse/ Viking colonies in Greenland and ended any chance of their colonizing at least a part of North America. I remembered reading that there were large fairs on the frozen Thames River from the late 1600s until Victorian times in the mid-19th Century. Published in 2000, this book put forth the case that the world went through "a little ice age" from 1300-1850, and before and after there was (and is) a warming period. And what really stuck with me was that the increasing cold conditions doomed I read this book years ago and was fascinated by all the examples that showed how climate has affected history. I read this book years ago and was fascinated by all the examples that showed how climate has affected history.
