Sunspot activity might mean
lower temperatures on Earth.
During one seventy-five year
period, now called the Maunder
Minimum that lasted from 1645
to 1715, Sunspot activity virtually
ceased, and temperatures on
Earth fell enough to cause a “Little
Ice Age” of severely
cold weather across Earth’s
northern hemisphere. The winters
were so cold that the canals
of Holland froze over and Dutch
skaters could compete in races.
Did the changing Sun cause
this climate change? Scientists
don’t really know but many think that there was a connection.
the 11th and 12th centuries, there was
a large warming coincident with enhanced
solar activity. The Vikings inhabited Greenland
during this period, and they abandoned
their settlements when the climate there
grew colder. It is interesting to note
that the Sun’s changing magnetic activity may have
had a direct effect on their culture.