<![CDATA[Merchants Of Doubt Started With A Big Lie From An Incompetent Scientist]]>The movie started out with James Hansen claiming that Venus was 600 degrees because of 97% CO2 which was trapping heat.

Apparently Hansen can’t do his own basic math.

Hansen says that each doubling of CO2 causes a 3C temperature increase. Venus has 97% (0.97 mole fraction) CO2.  In order to get to 97% on Earth, we would require less than 13 doublings. That would raise temperatures by about 35 degrees, using Hansen’s own exaggerated theory. Nowhere near 600 degrees.

h/t Morgan Wright.

 Mole Fraction  Temperature Increase (C)
1	0.0004	
2	0.0008	3
3	0.0016	6
4	0.0032	9
5	0.0064	12
6	0.0128	15
7	0.0256	18
8	0.0512	21
9	0.1024	24
10	0.2048	27
11	0.4096	30
12	0.8192	33
13	1.6384	36

Hansen’s own theory can’t explain the high temperatures on Venus, yet he continues to parrot the same mindless nonsense decade after decade.

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