«Willis builds a strawman Willis makes a logical fallacy known as the strawman fallacy here, when he says: The current climate paradigm says that the surface air temperature is a
linear function
of the «forcing»... Change in Temperature (∆ T) = Change in Forcing (∆ F) times Climate Sensitivity What he seems to have done is taking an
equation relating to a simple energy balance model (probably
from this Wikipedia entry) and applied it to the much more complex climate
system.