Eh, technically both contribute. Heat from electrical devices still gets dumped into the environment, and a good portion of that electricity is produced with greenhouse gasses (coal or oil-fired power plants).
Generally, though, yeah, the heat from running AC (or, say, a desk fan) is miniscule compared to other factors.
The heat from electrical devices are basically negligible compared to what the sun beams into the planet, otherwise solar panels would be physics defying.
The problem has always been greenhouse gases causing the sun heat to escape slower than we collect them.
Eh, technically both contribute. Heat from electrical devices still gets dumped into the environment, and a good portion of that electricity is produced with greenhouse gasses (coal or oil-fired power plants).
Generally, though, yeah, the heat from running AC (or, say, a desk fan) is miniscule compared to other factors.
The heat from electrical devices are basically negligible compared to what the sun beams into the planet, otherwise solar panels would be physics defying.
The problem has always been greenhouse gases causing the sun heat to escape slower than we collect them.