What is the right definition of Zero Waste? Isn't "0% Landfill E-waste Policy" or "100% landfill-free Recycling Policy" good enough? By the standards of Zero Waste International Alliance it is not good enough if some of the waste end up in the incinerator.
They said that the right policy should be "Don't burn or bury" your resources thus eliminating all discharges to land, water or air that may be a threat to planetary, human, animal or plant health.
1) designing and managing of products that are sustainable.
2) developing manufacturing processes that will reduce the volume and toxicity of waste.
3) making full use of discarded materials.
TerraCycle Plant Food was on Planet Green: Eco-Tech: Zero Waste.
I am sure that this company made the Zero Waste grade by all standards.