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Science/Tech See other Science/Tech Articles Title: Some common sense on global warming This is going to be a busy day. I still have tomorrow's installment of Chaos Manor Reviews to get done. It's Monday meaning I have to roll over View and Mail. There's a lot of news that should get comments; and Niven has taken a short pass through Inferno meaning I need to merge his version and mine. And I managed to get some fiction done Saturday, I am eager to get at it today, but I have an appointment this afternoon right in the middle of my prime writing time. I don't think I will get it all done. I did manage to do a bit more work on the short comment I had about The Jesus Tomb; rather than start over, I added a bit to what I wrote yesterday. I hope that will count. There's a lot more gas about Global Warming, but none of it causes me to change my view: yes, the Earth is warming, as apparently is the rest of the Solar System. The warming trend is hardly alarming: we have had warmer periods in historical times including the Medieval Warm Period. Yes, CO2 levels are rising, and since warm water holds less dissolved gas than cold water, any trend that warms the seas will accelerate that. The levels are high, but we don't really know the effect -- CO2 isn't a very efficient greenhouse gas. Water vapor is. As the seas rise the surface areas become larger; this increases evaporation, which increases water vapor. Water vapor is a rather efficient greenhouse gas. Higher water vapor content usually means more clouds. Clouds are bright and tend to reflect received sunlight, reducing the insolation reaching the Earth. Models reflecting (no pun intended) this are in a very primitive stage and are not incorporated into the computer models that predict doom (doom now being 17 inches of sea level rise rather than Al Gore's 17 feet). Enough clouds can produce cooling trends. Ice ages are far more destructive than periods like the Medieval Warm (many say we should be so lucky as to get something like the Medieval Warm). The polar bears seem to have survived the Medieval Warm (proof: there are polar bears). We really don't know enough about all this, and we really ought to be doing more studies: but the allocation of study funding should NOT be in the hands of the "consensus" mob who tend to act like thugs. There needs to be as least some funding of those who question the "consensus".
Poster Comment: Computer models are linear; life is chaotic. When it comes to global warming, the first are almost completely worthless.
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