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Is there a correlation between the heat given off by humans and the average temperature of the atmosphere around big cities?

Ah, yes, the heat-island effect. Most of the older climactic data came from airports, which were (reasonably) located out away from the cities they served. However, as time went by, cities expanded and surrounded the airport with construction, concrete, people, etc. This raised the ambient temperature of the airport, without any climactic change whatsoever.

Not so. A large empty room that is cool, soon becomes uncomfortably warm when it is filled with people. So, my question is, if a heat increase, with time, is true for the air in a crowded room, then why is it not true for the atmosphere of our increasingly crowded planet?

Calculate the biomass of humans in 1900 to the biomass of humans for each year to date, and then cross-plot the average atmospheric temperature by year. What is the correlation between the two variables?

Is the correlation coefficient greater than that for the politically incorrect "Satanic Gas," C02?

My hunch is 98.6 % in favor of the human biomass correlation.