Yes there is. It’s just that no one has even looked into it.
SIMPLE: 99% or more of the earth’s heat COMES FROM THE SUN! Whatever part man’s contribution is is insignificant.
My son has degrees in Math, Computer Science and Physics (and Greek), so that is my qualification for knowing.
Why hasn’t someone simply calculated all the heat received by the earth from the sun in a year and compared that to man’s contribution? Oh - they add the bogeyman of CO2’s “greenhouse effect” to explain their numbers......
Manmade CO2 is a relatively uncontroversial claim. CO2 traps heat, basic physics. But from those two theories we cannot determine the amount in reality due to earth system (mainly weather) complexity and cannot predict anything.