In our daily lives we use energy in several contexts, much more than we think. Depending of teh origin of this energy, the CO2 emission can be different but all of us contribute to this problem that is the cause of the greenhouse effect. We have calculated how much CO2 we send to the athmosfere when we take a shower, considering that we heat the water from 20ºC to 40ºC using methane.
Here are some results.