Conclusion
Renewable plastics and additives can solve the risk of crude oil shortage, high costs of crude oil and environmental trends. Recycled plastics avoid use of crude oil as feedstock, decrease pollution by useful reuse of wastes, and provide employment. Natural-sourced plastics also avoid use of crude oil and provide agricultural employment.
From an environmental point of view, proper utilization and conservation of resources is the prime objective of environmental management. In the World Conservation Strategy (1980), the three main objectives stated were as follows:
• the sustainable utilization of natural resources avoiding overexploitation and optimizing conservation of natural resources
• the maintenance of essential ecological processes ...
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