Every electrical device consumes electric energy and almost every one of them I can think of produces heat as a byproduct. This also applies on every kind of machine powered vehicle. Even our bodies produce a small amount of heat. Almost everything produces a small or high amount of heat. This only gets more and more with more people on this planet and continuing industrialization. Just think of all the giant production around the world and all the means of transportation - they all produce a massive amount of heat.
If you put hundred cups of hot tea into one room the room temperature rises as the tea cools, right? This is heat transfer.
I asked myself wether we would still have a negative effect on the climate even when we (could) reduce our carbon footprint down to zero today or not. We would still produce a lot of heat with almost everything we do.
To what extent has heat production a negative effect on the climate compared to co2 emission?
And why is heat production never payed attention to?