Ah, I meant advertising in the sense that we're seeing tons of advertising for cheap meat, air travel, factory food, new gas cars, and whatnot. A good question to ask might be that if corporations _didn't_ advertise so much, how much less frequently would we buy those types of products/services? Would we still need them? I think the advertisers know what would happen, and so they have to keep it up.

Now, if we decided to throw a few environmental ads into the current mix, I think you're right that they'd have little effect. But we can't forget how much advertising we see for stuff that's harmful in many ways, regardless of how temporarily satisfied we are with our purchases. Because so much of what we buy has serious negative (but hidden) consequences, advertising is causing us to act against our (non-immediate) self-interests.