June 23 broadcast, heard it the day before I went to measure melting glaciers. (Main link here, might try this if it still works, and go to Minute 101. Below is a rough transcript; the audio was dodgy.)
Caller: [Caller references how body temperature of many people in an enclosed room will raise its temperature, then continues]....It's amazing that the world hasn't gotten warmer than it has since 1980 when the population went from 3 billion to 8 billion 30 years later, there's just no accounting for that if the greenhouse effect were actually true....Levin: ....interesting point...if it's man-made, then why aren't we a lot hotter than we are now because of the significant increase in population.Caller: ....[says billions of people walking around at 98.6 degrees, well above global ambient temperature]Levin: ....[says it's an "excellent point"]
I think we have a theory that might trump Louis Hissink's geothermal warming for its explanatory power. Eat your heart out, Deltoid.