Real Science

In 1999, Hansen wrote this :

in the U.S. there has been little temperature change in the past 50 years, the time of rapidly increasing greenhouse gases — in fact, there was a slight cooling throughout much of the country

NASA GISS: Science Briefs: Whither U.S. Climate?

The graph below shows the current GISS US temperature graph, with a line drawn between the 1949 and 1999 five year running mean values. How did “little temperature change” turn into more than half a  degree of temperature change?

Fig.D.gif (513×438)

His 1999 version of the same graph looked like this :

fig1x.gif (500×182)

Hansen simply corrupted the data set. The blink comparator below shows what he did in the year 2000 to make the data match his theory.

Interesting too that he chose “50 years” as his measurement metric. Why didn’t he start in the 1930s, and show that…

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