It’s been cold here in the Midwest. In ten days in La Crosse, WI, where I am, the average low was -13.7F, average high, 4.3, and the average of averages over the ten days was -4.7F. We smashed one daily record. There have been no all-time lows, but this is a grind. In the middle of this grind, I woke up one morning thinking about greenhouse gases, GHGs. There is very little GHG in this weather because the dominant GHG is water vapor, and below-zero air has almost no capacity to hold water. Then I got to thinking; this is…
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