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PLA vs PET: Corn plastic to the rescue

Discussion in 'Environmental Discussion' started by zenMachine, Jun 7, 2010.

  1. zenMachine

    zenMachine Just another Onionhead

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    Eric Lombardi, president of the Grassroots Recycling Network and a leader in the international Zero Waste movement, takes a nuanced view of PLA’s progress. He says it’s “visionary†even to think about biologically based plastic instead of a petroleum-based one. True, he says, there are problems with PLA, “but let’s not kill the good in pursuit of the perfect.†He suggests that the difficulty disposing of PLA reflects a larger deficiency in how we handle trash. He’s calling for a composting revolution. “We need a convenient, creative collection system with three bins: one for biodegradables, which we’ll compost, one for recycling, and one for whatever’s left.â€

    Until such a system is in place, it’s going to be hard to have cheap convenience packaging and feel good about its environmental effect—to have our takeout cake and eat it too. But the manufacture of PLA does save oil and generates far less air pollution. And we have to start somewhere.

     
  2. hyo silver

    hyo silver Awaaaaay

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    It's a good idea to manufacture materials from something other than petroleum, but I'm not sure corn is the best solution. The corn industry doesn't need more subsidies, and we use far too many pesticides as it is. I would suggest 'plastic' made from hemp is much more sustainable and uh...yeah, green.
     
  3. zenMachine

    zenMachine Just another Onionhead

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    Agree that corn isn't exactly the best crop to make plastic. But for now it's the best legal option we have. Hemp plastic sounds cool.

    Hemp Plastic ::