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Old 01-01-20, 02:45 AM
  #13  
clemsongirl 
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Originally Posted by bobwysiwyg View Post
Steel and aluminum do their share as well. But.. their utilization offsets a good deal also. Sounds like a good doctoral study for some post-grad student.
Carbon fiber reclamation and recycling is a fairly new process and it’s production is more energy intensive than steel….but yes, bicycles are many many times cleaner than making and especially using cars and any bicycle is the absolute lowest use of energy in manufacturing and use per mile across its life compared to other forms of normal transport, even adding in the food production and transportation energy (even more so if bought responsibly) needed to keep the body fueled.....and there are bamboo and especially used bikes for those like 1979schwinn
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