In contrast, less than 3% of residential gas usage goes to cooking, according to TFA.
Now, if you were to assert that poor people shouldn't even buy Starbucks once a week, that might be a more apt analogy, although I would question the effectiveness of that advice.
Like I said earlier, I drive a 1995 Honda minivan, because the mileage and low upkeep probably constitute the greatest environmental impact I can make at my income level.
What, if I may ask, are you do doing to minimize your impact?