To: TopCat who wrote (571211 ) 6/11/2010 5:19:14 PM From: koan 2 Recommendations Read Replies (3) | Respond to of 1583403 >>"Of course, there never was any global cooling" Of course not....that Ice Age thingy never happened.<< Well, let me be specifically responsive then. You cannot draw the conclusion that there is no manmade global warming just because we have had periods of warming and cooling. There is a saying in economics that goes: Post hoc ergo propter hoc, Latin for "after this, therefore because of this", is a logical fallacy (of the questionable cause variety) which states, "Since that event followed this one, that event must have been caused by this one." It is often shortened to simply post hoc and is also sometimes referred to as false cause, coincidental correlation or correlation not causation. It is subtly different from the fallacy cum hoc ergo propter hoc, in which the chronological ordering of a correlation is insignificant. Post hoc is a particularly tempting error because temporal sequence appears to be integral to causality. The fallacy lies in coming to a conclusion based solely on the order of events, rather than taking into account other factors that might rule out the connection." You are drawing a conclusion based on no evidence. So what that there were periods of warming and cooling? They were caused by specific actions in nature many of which are discernable. E.e. during the Permian age volcanos spewed the CO2 into the atmosphere which raised the temperature which then melted the methane hydrates which raised the temperature even more and the hot planet wiped out 95% of all life on earth. This time we are spewing the CO2 from our use of energy. Same trip just a different mechanism. The scientific community has conducted massive science and they are better than 99% sure they are right. So what you are doing, is looking right into those facts; and ignoring them.