Let's hope there's not another Maunder Minimum coming.
In the last couple of years there have been very few sunspots, which appear to be related to harsher winters.
The trend with sunspots seems to be continuing.http://www.theregister.co.uk/2011/06/14/ice_age/
I lost virtually all my non hardy plants over the last two winters. I hope there won't be a repeat.