Simple Eco Rating

 
Every product should we humans manucture should have 2 indexes:
  • sustainability index
  • toxicity index
They can be calculated by dividing time to replenish resources (or safely dispose toxins) by lifespan of a product. So index of 1 and below means that product is sustainable and 'safe' and the greater the index the more unsustainable product is.
 
Such indexex can be used for:
  • 'Shopping cart' can be scanned at home with smart phone and application would automatically suggest better alternatives, home delivery can be arranged to further reduce waste caused by inefficient delivery
  • Manufacturing and sales of unsustainable products can be heavily taxed