I think you know I was refering to the maunder minimum - I would be very interested to hear comments about the effects on our climate that thermonucular tests may have had.
The Sun's output is not entirely constant. Nor is the amount of sunspot activity. There was a period of very low sunspot activity in the latter half of the 17th century called the Maunder Minimum. It coincides with an abnormally cold period in northern Europe sometimes known as the Little Ice Age. Since the formation of the solar system the Sun's output has increased by about 40%.
Examinations of the solar activity cycle and the unusually cold weather of the Maunder minimum period have spurred significant controversy among astronomers, atmospheric scientists, and climatologists. The period from about 1300-1715 is known as the "Little Ice Age" in Europe, a period characterized by unusually long and cold winters. This period coincides closely with the time during which the Sun is known to have had time of inactivity, with some of the worst weather occurring squarely during the Maunder minimum.
There maybe some concideration as to the suns great effect on our planet, It could be suggested that there is variations to a "normal" 11 year cycle. Indeed studies on other stars confirm a great variety in cycles.
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