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No one is denying that the Earth goes through cycles of warming and cooling.  What causes it is the milankovitch cycles.  The current warming is above and beyond and much more rapid than can be explained by orbital or precessional cycles.  In fact, according to measurements of the current cycle, we should be experiencing cooling, which is why scientists in the 1970s thought we might be in for another ice age some time in the future.  That was before satellite and other data became available that demonstrated quite clearly that we aren't, in fact, seeing a cooling trend at all, but rather, a rapid rise in golobal temperaures.  Nor can it be explained by solar output.  There is too much forcing going on to be explained by either.


And no Palerider, it isn't for me to defend anything.  The current concensus amont the vast majority of the world's scientists is that AGW is occuring, and so the burden of proof is on the deniers, dude.


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