In the short term it has and will, while we have low hanging fruit we can tackle, stuff like insulating houses, not burning fossil fuels, and taxing carbon output so that commercial / industrial processes take it into account has all lead to reductions, but those won’t last forever. I mean, now that Solar / Wind are cheaper than fossil fuels, a carbon tax alone no longer incentivizes reductions in energy use since energy and carbon output have been decoupled.
Once we finished doing those basic things that we should have been doing for decades, per capita energy use will trend back up, and overall energy use has still been trending upwards this whole time anyways due to population growth.
Yes, my point is that many green advocates / leftists mistakenly think that per capita energy usage will go down.
My point is that once it’s decoupled from emissions there is no reason for it to, so it will skyrocket, so western governments should be focusing on building out excessive seeming levels of clean electricity generation.