Just a word about science and politics. This winter you may have noticed some politicians making pronouncements about how a few inches of snow in Washington proved that global warming was a myth. You probably didn't hear from these folks in the past few days. By the same token, a string of hot days in July does not prove that global warming is real. On the other hand, long term temperature trends, melting ice caps and disappearing glaciers are a little harder to argue away.
Real science begins with INTELLIGENT observation not superficial impressions nor misinterpretations of data to suit your prejudices.
.... and by the way, no mysterious force pushes you into a roller coaster seat; the seat pushes on you as it changes your velocity. You feel pressure on your backside not your lap.
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