Answer:
In the past, changes in solar activity had a significant effect on global climate. When the sun was more active, it would produce more radiation and ultraviolet radiation, which would lead to an increase in global temperatures. On the other hand, when the sun was less active, less radiation was produced, which would lead to a decrease in global temperatures. These changes in solar activity could cause significant shifts in global climate, such as the Little Ice Age, which occurred from the mid-17th century to the mid-19th century.
Step-by-step explanation: