But I'm certain you walk literally everywhere you go, wear only second-hand clothes, avoid buying necessities with packaging or that has to be transported far, don't use disposable paper products, compost everything you can, and so on, right?

Because surely only the environmentally saintly would feel entitled to off-topic carp about trivial energy use when they don't know anything about the lifestyle of the person they're trying to call out.

If you are concerned the logical thing is to cook your own dinner and burn zero gas.