Lowering energy usage doesn't solve the climate problem it just slows the devastation. We need to use clean energy regardless if it's for AC or for work to have a worthwhile impact on that half of things. From another view: it's better to live well sustainably than be proud of unsustainably living miserably. To do that we need to convince people to pay more for electricity generation instead of pointing out they likely wouldn't die if they used less dirty energy.