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When metals are produced from natural rocks, not only is land damaged and many poisons are released into the environment, large amounts of electricity are used.
Reusing metals is much easier than producing them.
The Romans melted down statues taken from their enemies to make their own weapons.
Even in the 18th century, Americans encouraged metal donation for military use.
In the 19th century, large companies specializing in recycling were established to meet the growing demand for metals.
In the 20th century, metal production became faster and more efficient.
At this time, making products that are designed to break or become unusable after a short period of time in exchange for lower production costs.
People think about recycling large appliances like refrigerators and washing machines, but smartphones are replaced in a short period of time. The amount of metal in the world is limited, so it may be to learn from old ideas to preserve the world’ supply.
This is my summary of the text. I am reminded that I buy a new smartphone every two years.
I think The Tokyo Olympic and Paralympic medals were made from cell phones.