I definitely see what you&#x27;re getting at, that there could be yet-unknown&#x2F;unmeasured variability in the sun&#x27;s output that could be affecting the average global temperature.<p>I fail to see, however, how this fact in any way discredits the research done by other scientists.<p>You have a hypothesis that is untested, that is not necessarily mutually exclusive from the already tested hypothesis.<p>Until that hypothesis is tested and confirmed, I will live my life by the already tested and confirmed hypotheses.<p>What really confuses me about this whole issue is, what exactly are people afraid of us doing if we operate under the assumption that climate change is man made?  Why such vitriol (not from you, but others) against the idea that humans can&#x2F;have contribute(d) to a changing climate?  I&#x27;m honestly asking.