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Message: <blockquote data-quote="BlackRazor" data-source="post: 554663" data-attributes="member: 9178">Leave it.If you want to keep thing realistic, plastic will still be there in 10K years and  this fact is curently a major environmental concern. Why is plastic such a hard substance to get rid of ? Macromolecules.Most of the plastic bag  you see today (specially saran-wrap and other pellicular stuff) is actually a single HUGE molecule of plastic in wich  every single chemical components linked together without break. This peculiar characteristic make it nearly immune to bacteria and decomposition. Why does no bacteria attack it ? Energy balance.To make common plastic you have to inject a good quantity of energy in a chemical reaction called polymerisation wich is used to make nearly all plastic we know. This mean that to break the molecular bond and thus be able to "eat" the plastic chemical components (like our stomach do with food, break the meat,veggy or fruit  molecules and harvest the resulting enery and vitamins), bacteria would have to invest MORE energy that the plastic would give her by eating it. They would literally starve to death trying to eat plastic !Plastic however is not indestructible. The easiest way to destroy commercial (i.e cheap) plastic is to expose him to normal solar light. The U.V ray cary lots of energy with them (sunburn anyone ?) and they  "weaken" the molecular bond of the Macromolecule,  making plastic hard and brittle over time (5 or 6 years), prone to break and chip like soft stone. This could create "plastic filed" where accumulated plastic chips gather dust like boulder fileds. High grade plastic, like Nalgene or Propoxyl are however more stable and nearly impervious to U.V. radiation. These are here to stay. Even whorse are the composite, carbon fiber and graphite material. These compound are able to whistand hundred of thousand years of erosion without breaking. Almost like a diamond. Even aluminium dont last that long. Your player could find the remaning composite structure of modern aircraft and wonder why somebody build such strange thing.- Plastic doggy dog in the snow...</blockquote>

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