It's a little more complex than that, I go with the natural cycle, got fucked by us idea.
Naturally the cause of ice age-warm time is normal, though there is also the idea of a magnetic shift to the hemispheres rotating 45 degrees.(backed by increased rotation of the magnetic poles)
Global cooling is affecting europe more (or soon will, once greenland is all melted, which will happen soon). And at the moment North america is slowly going into drought(no ice caps = less water into streams and lakes, less evaporation, less rain.)
No one has a clear clue on what is happening though, but it is clear we are tres fucked