Eco-Chick schooled us on how to make our denim greener:

1) Organic denim to cut down on pesticides involved in denim production (1 pound of pesticides per pair of jeans for the non-organic)

2) Darker jean colors - lighter ones involve extensive bleaching which leads to groundwater pollution

3) Extend the life of your denim with patches and repairs. You can mail your denim off to DENIMTHERAPY - this company will repair holes without patching - like new - at reasonable cost.

Here is her recent blog on this