I think it is important to acknowledge this up front: Electricity usage does not cause climate change.
Focusing on electricity usage is not an effective way to minimize or mitigate climate change. Climate change is primarily caused by the release of CO2 and methane into the atmosphere. Certain types of electricity generation are major producers of CO2, so the effort should focus on these types of generation. Reducing or eliminating them will have a direct effect on climate change, regardless of how the electricity is used.
The process and the method use in generating electricity might cause environmental hazards. Apart form the most common generation of electricity through hydropower, some other means such as the burning of fossil foil and other biomass releases poisonous gas that causes ozone depletion and green house effect.
