A morbid fascination with disasters

I must admit to having a morbid fascination with disasters.

Lately, there has been much buzz on the internet about the Yellowstone Super Cauldra and the potential for an mega-explosion.  The latest evidence offered for the increasing odds of this happening is the earthquake centered in Montana.

As noted in an earlier post, the ash and sulfates blown into the atmosphere would lower temperatures in the northern hemisphere for a decade.

A 20 degree F (12 C) downward shift in temperatures would change my winter lows from those of south, central Michigan to south, central Saskatchewan or west McGrath, Alaska

There are fruit trees and bushes that will survive in those climates.  This website is a good reference.

I mentally sorted through the fruit trees I have growing on my little patch of paradise.  Not many would survive -40F.

Primarily some seedlings that are progeny of Hazen, Sweet Sixteen and Keepsake.  Parentage deduced based on fruit characteristics and growth habit.

Primarily apple-crabs like Kerr, Centennial and Trailman.

Besides apples, Juneberries, strawberries, raspberries, currents, elderberries and gooseberries are good bets for super-hardy fruits.  I also have some American Plums growing beside the road that are likely to survive.

My blackberries, peaches, pears, apricots, persimmons and most of my apple trees would be killed to the snow line.

Winter lows are not the only issue.  Length of the growing season becomes a player as well.