"The bottom line is that green shopping, even when practiced by millions of people, just doesn’t add up to enough to affect the system. Sociologists call this the behavior-impact gap.." (Source: NY Times)
Excellent contribution by Annie Leonard ("The Sory of Stuff") to an interesting NY Times debate on sustainability, green consumption and system change.
“Our real source of power to make a difference is through changing the polices and structures in which production and consumption happen, and we do that through civic engagement, not better shopping. So shop responsibly. Just be sure that’s where you start, not where you stop. “