During the 60's and 70's when "global winter" was the fad, one of the major reasons for projecting an increase in population and industry in the South was the steady decline in the number of hurricanes... Go look it up.
In any give day, month, year or decade:
1/3 of the earth is above average.
1/3 of the earth is below average.
1/3 of the earth is average.
But when the 1/3 above average shifts from Africa to South Atlantic to S America to S. Pacific then the weather patterns will shift.
BTW Why was the Dark Age called the Dark Age?
Because they didn't have any light bulbs yet!
susie
"BTW Why was the Dark Age called the Dark Age?"
Well, I'd guess it wasn't because it was dark all the time. It's called the "Dark Age" because it was - wait for it - unenlightened (i.e, knowledge and education were suppressed and restricted to very few). The Age of Enlightenment followed the Dark Ages.
'Cos there were so many knights.