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Penn & Teller: Bullshit! "Being Green" Pt.1
I like p&a asmuch as the next guy, but that graph that the weather man shows in this part DOES snow a trend. If you think of it as a sin or cos graph, you can see the maxima and minima do shift up in the second half compared to the first.
Draw a line of best fit through that sucker and i bet you a million that sucka would be positive.
While you are right, the fluctuation does have an upward trend, that is not the point the weatherman is making. He is merely pointing out that the temperature fluctuates as the solar activity, a factor that is independent of atmospheric CO2, fluctuates.
The same upward trend is seen in the solar activity, accounting for the observed temperature changes.
I'm not saying that global warming is CO2 independent, far from it. But the graph does have significant merit.