Too, it need be considered why Jupiter is where it is and its size, for it's huge size (mass) has a strong gravitational effect on
meteors and asteroids going near it, causing them to either be absorbed
by it or deflecting them away from the earth.
From what data exists about previous peroids of rapid climate change (i.e. climate change caused
by an intrinsic mechanism such as a
meteor impact, massive volcanic activity or human activity, as opposed to sun cycles), it seems that climate does show such behavior
too.