The recycling process reduces the amount of carbon dioxide because fewer materials are burned. Recycling is also energy efficient because some products require less energy to reproduce and save a lot of energy by not producing a product over and over again. Limitation of the recycling process: The recycling process is expensive and if the polymer contains another type of material, it can contaminate the entire melted batch. The recycled product does not have good resistance and may not last longer. Recycling sites are very unsanitary and spread disease and other harmful chemicals and waste. Reduction to low molecular weight: By the process of hydrolysis and pyrolysis, the polymer can be degraded to a lower molecular weight and by the process of filtration, it is separated from the non-polymer. and finally, the polymer material is separated into its components by fractional distillation, allowing a large portion of the polymer material to be recovered and reused. Recycling of Junk Automobiles Junk automobiles contain 12% to 13% of polymer material of their weight, so the junk automobile must be recycled in order to recover