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To: Brumar89 who wrote (2420)	9/21/2011 12:59:16 PM
From: Land Shark	Read Replies (3) \| Respond to of 85487

>Maybe so, but will it flood Manhattan streets or do other bad things? Recently there already was flooding in that area due to a hurricane. Never heard of that in my lifetime. wggb.com

To: Brumar89 who wrote (2420)	9/21/2011 1:44:28 PM
From: Wharf Rat	Read Replies (2) \| Respond to of 85487

Try and shoehorn this exceedingly complex series of events and numbers into that little bump sitting on your neck. 1) Hansen didn't say 20 years. 2) Hansen said nothing about time by itself; in reality, the time is determined by the variable.. CO2...see 5&6&7 3) The question had 2 conditions...40 years from now, along with a CO2 level of 560, twice pre-industrial levels.. 4) The important thing is the doubling of the CO2, since it, rather than time, is the greenhouse gas. 5) At our present rate of production, it will take 80 years from now to reach that level 6) To reach it in 20 years from the '88 interview would have required changing CO2 levels by around 21 PPM per year, instead of the current 2, since it was roughly 345 PPM at the time 7)To reach that level in another 20 years would require emissions of 8 PPM/year, 4X the current rate.