About 50 or so kinds modern plastic are made from oil, gas, or coal-non-renewable natural resources. We import well over three million tones of the stuff in Japan each year and sooner or later, most of it is thrown away, A high proportion of our animal consumption is in the form of packaging and this constitutes about seven percent by weight of our domestic refuse. Almost all of it can be recycled, but very little of it is, though, the plastic recycling industry is growing fast. The plastic themselves are extremely energy-rich-they have a higher calorific value than coal and one method of "recovery" strongly favoured by plastic manufactures is the conversion of waste plastic into a fuel
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