Re:Shopping bags

I can't vouch for all the bags you have lumped into one group but your facts may be mistaken as ADM and Staley have manufactured a plastic from Soy Beans that is sometimes labeled as ECO friendly.

 Although this bag as it degrades has a long total half life it breaks down into much smaller particles that are good for drainage in the soil.  So in the long run they are doing no harm but for those that end up in a landfill they take a certain amount of fuel to transport and cover.