Some are using the early snow in the northern U.S. today to spoof at the idea of global warming Before you join the jeer party, remember these bits:

1) The model of global warming includes increasing fluctuation in temperatures and weather. More energy in the atmosphere means more movement of air masses. And, breakdown of established patterns of air movement. One can expect some unseasonable weather during a global warming period.

2) Temperatures will fluctuate. Keep an eye on the yearly averages instead, especially the overnight lows, not on brief periods of cold or warm weather.

3) Remember, we have never trashed a planet before. We don't know exactly how it will work.

My earlier post Hot Summer and Global Warming and Global Warming: A Genuine Concern.