Metal Packaging Manufacturers Association

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A permanently available material,

 metal can be recycled over and over again


Bauxite (aluminium ore) and iron ore are mined from the earth’s crust and processed  into alumina/aluminium or iron/steel. Because the ores are mined, it is often said  that natural resources are being depleted.   However, an important point is missing from the story here; metals such as aluminium (Al) and iron (Fe) are elements and so cannot be destroyed.  In fact  planet earth has not suffered any loss of metal elements; they merely move location and appear in different forms.  

Aluminium and steel are materials that can be transformed into packaging and many other product applications, automotive, aerospace, construction etc. Once these product applications reach the end of their useful life, the aluminium or steel, from which the product applications have been formed, can be recycled and used again to make another product application.  This gives rise to a virtuous circle.

 

It is the product application (can,car,plane etc) that reaches the end of its useful life, not the material in the case of metals.

 

The aluminium and steel remain as a permanently available material resource to be used again by recycling back into aluminium and steel.  With every new cycle a new product application can be formed and this cycle can occur an infinite number of times while retaining the properties of the metals. 

Can we say therefore that metals are "renewable”?

Commonly accepted convention states that the term "renewable” is applied only to those natural resources  short term system described above (trees, plants etc).  Hence the focus is on responsible resource management (eg. forests).  Conversely the focus of metals is on responsible materials management, the materials themselves being a permanently available resource to be used again and again. It is obvious therefore that alongside the distinction between renewable and non-renewable resources there is an equally valid distinction to be made between permanent and non-permanent materials.

Conclusion:

It is misleading to equate mining of metal ore with depletion of the earth’s resources. Metals are elements and cannot be destroyed. Metals can be recycled without loss of their properties and can be used again and again to form new packaging and other product applications.

Metals are a permanently available material.


What is more sustainable than permanent?


And one additional point:  recycling metals save between 70% and 90% of the
original energy.


Metal – a permanently available material

 

 

 

 

 

 

 

 

 

 

 

 

 

 








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