Quote:
Originally Posted by PeterG
It's true that if one only focuses on the single data point for each year then it looks like "the variance has been fairly constant over time". But lg's smoothing curve averages recent data so that a naked eye is not fooled by year to year noise.
The chart actually shows 40 years of warming from the the 1970s to today.
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Actually, the chart shows ice out happening earlier over 40 years from 1970s to today. I don't see any reference to temperature. As people on the lake know, there are variables other than just temperature that determine ice-in and ice-out days. Wind being another major one.