Hypothetical Examples
One effective example is a shoe that is designed and mass produced using the C2C model. The sole might be made of "biological nutrients" while the upper parts might be made of "technical nutrients." The shoe is mass produced at a manufacturing plant that utilises its waste material by putting it back into the cycle; an example of this is using off-cuts from the rubber soles to make more soles instead of merely disposing of them (this is dependent on the technical materials not losing their quality as they are reused). Once the shoes have been manufactured, they are distributed to retail outlets where the customer buys the shoe at a fraction of the price they would normally pay for a shoe of comparable aspects; the customer is only paying for the use of the materials in the shoe for the period of time that they will be using the shoe. When they outgrow the shoe or it is damaged, they return it to the manufacturer. When the manufacturer separates the sole from the upper parts (separating the technical and biological nutrients), the biological nutrients are returned to the natural environment while the technical nutrients are used to create the sole of another shoe.
Another example of C2C design is a disposable cup, bottle, or wrapper made entirely out of biological materials. When the user is finished with the item, it can be disposed of and returned to the natural environment; the cost of disposal of waste such as landfill and recycling is eliminated. The user could also potentially return the item for a refund so it can be used again.
Ford's Model U is a design concept of a car, made completely from cradle-to-cradle materials. It also uses hydrogen propulsion.
Read more about this topic: Cradle-to-cradle Design
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“It is hardly to be believed how spiritual reflections when mixed with a little physics can hold people’s attention and give them a livelier idea of God than do the often ill-applied examples of his wrath.”
—G.C. (Georg Christoph)