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You are correct Hillbilly. Lots of factors can determine the avg. yearly temp.
Volcanos, moisture in the atmosphere, Ocean currents, layers of the sun
planet wobbles, egg shaped orbits ect, ect.... The problem of whether or
not global warming exists is the lack of proof that a normal climate has ever
existed in the first place. Mother nature knows what shes doing anyway.
I watched an interesting documentary the other day about paleontologists
finding fossil evidence that a tropical environment once existed in Alaska
complete with tropical plants and massive lizard creatures. It seems to me
that if the temps on Mars are rising at the same rate as on Earth then it must be
the Sun this time.
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