Seeing that we get nearly all of our heat from the Sun, and the Sun not being a perfect object, it must have some variance. If it has a variance, then it must affect our temperature, right?
So I found this article on wikipedia about Solar Variation, and noticed that we differ about 1 watt per square meter during the solar maximum and solar minimum. Give the wattage is about 1366 watts/sq M, that variance is about +/- 0.07%. Does that mean our temperature can vary by 0.07% just from the Sun alone? How much does the solar output really contribute to global warming and cooling?
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