toppop52
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In 1491, many scientists thought the earth was flat. Turns out they were wrong. Does the fact that some of them were wrong in the past invalidate the science that has followed?
Science is full of theories and explanations that turn out to be wrong or only partially correct. It is an iterative process and new data or knowledge changes our understanding. I doubt that many of the climate scientists who were concerned about cooling have failed to review additional data and understand they were wrong. I also don't think that idea was terribly well accepted by the larger climate science community as there were no great international conventions to seek practical solutions to the problem. Most likely a "flash in the pan" theory that was soon discarded. In contrast, we have now seen decades of scientific work which points to AGW and the vast majority of climate scientists agree the evidence is now overwhelming. Skepticism is a valid part of science but demands a logical and data driven argument. Pointing out that a few scientists over hyped an incorrect theory forty years ago is not valid skepticism. It is cherry picking of data which is a common tactic of deniers and such distortion doesn't stand up at all to the mass of data and understanding that has been gained since that time.
That doesn't change the fact the earth was cooling then, much as it's warming now, but the hydrocarbons and upper atmosphere content of gasses such as R-12 were much higher then. Whether their theory was right or wrong based in the same info today's theorists use is a perfectly valid argument. The fact they were wrong using the same basic data but with dirtier air means something, could it be the more polluted air actually caused cooling? Once we started the clean up it warmed up? You all argue based too much on a tunnel vision toward what you want it to be vs what it may encompass, thereby leaving out so much valuable information that may show us a lot more than grandma's coal stove is to blame.