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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (998717)	2/4/2017 9:37:58 PM
From: Brumar89	Read Replies (1) \| Respond to of 1573962

Because China, etc produce a LOT more smog that we ever did. If our smog cooled the earth for decades, why isn't theirs? I am so glad you climate alarmists are getting into aircraft contrails. You just can't figure out how they're endangering life on earth but you're sure they are. He found that [PDF], for those three days, the average range between highs and lows at more than 4,000 weather stations across the US was 1 degree C wider than normal. In other words, contrails seemed to raise nighttime temperatures and lower daytimes ones. But the real effect was in daytime highs, which were much higher. That would seem to indicate that, contrary to prevailing thinking, contrails might have a net cooling effect. *...........* But there's no doubt that whether the net effect is to cool or warm, contrails can quite dramatically change cloud cover. You get that? Airplane contrails: raise nighttime temps lower daytime temps make daytime highs much higher might have a cooling effect .. or a warming effect.