Landfills Build up Valuable Resources
There is no doubt that landfills are a blot on the landscape, but recent research show that although landfills are not very nice places to be, they are in fact full of dumped electrical items. In Japan, it was found that they throw away twenty million mobile phones every year. These contain copper, gold, lead, palladium, tin, titanium and zinc.
If we consider the amount of dumped computers too, then there is a real wealth of resources being dumped into holes in the ground. It has been estimated that if Japan where able to refine these precious metals it would place them in the top five producers of this type of resource.
Source [Eco Geek]
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