When you throw food away, you may give passing thought to those who suffer from hunger, whether in developing nations or in your own community. You may also think about the money you squandered on that uneaten yogurt or the mushy head of lettuce that sat wilting in your crisper. But do you think about the environmental costs of letting that food go to waste? Sure, you may give yourself a pat on the back for using the green bin, diverting your organic residuals from landfill — but what about the resources that went into getting that food to your plate in the first place? What about the environmental consequences of throwing it away, green bin or not?