How much environmental degradation occurs in obtaining the raw materials;
How many toxins and hazardous wastes are created during extraction, manufacturing and disposal;
How far it must be transported;
How bulky and heavy the item is (which affects how much space it requires in transportation and storage, how much energy is used in transportation and how much space it will take up in a landfill);
How easily recyclable it is and how often it is recycled;
How much the overall process contributes to greenhouse gas emissions