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Natures Filaments

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Intensive chemical-based, soil depleting, subsidized cotton-growing is ... Logs are chipped, boiled in acid to make pulp. Paper machines larger than a house ... – PowerPoint PPT presentation

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Title: Natures Filaments


1
Chapter 9
  • Natures Filaments

2
Fibers .. the longish, tough, flexible filaments
that connect nature to itself and to human
life.Biologist Peter Warshall
3
Sources of Fiber
  • Forests
  • Plants
  • Livestock
  • Oceans tidal zones
  • Petrochemical fibers - now competing with most
    other fibers, except paper some building
    materials

4
Most natural fibers grown in unsustainable ways
  • Intensive chemical-based, soil depleting,
    subsidized cotton-growing is still widespread
  • Sustainable ways of growing wool, flax, hemp
    (strongest) even cotton are familiar
    practical
  • Sustainable harvesting forest management
    practices are known commercially viable, but
    not widely practiced

5
Paper Industry
  • Most Western paper mills are gigantic large-scale
    operations
  • Often use as much energy and water as a small
    city
  • Use equivalent of 75 acres of clear-cut forest
    per day
  • Logs are chipped, boiled in acid to make pulp
  • Paper machines larger than a house
  • Forms web of fibers that thunder through
    high-velocity steam-heated dryers onto shipping
    rolls
  • Paper universally available in our culture
  • priced at a penny per sheet
  • Rarely paid for or thought about by its users

6
Paper Waste
  • Most paper used for the short term then
    discarded
  • About 1/10th used for long-term storage
  • Average U.S. office worker estimated to use a
    sheet every 12 minutes dispose of 100-200 lbs.
    of paper per year
  • 70 of typical office waste from the paper
    chase
  • In 70s 80s, discarded office paper grew by 150

7
Substitute Bytes Brainsfor Paper
  • Redesign business around people, not paper
  • Eliminate nega-information
  • Use electronic communications business
    transactions
  • Conduct research electronically
  • Move to web-based businesses

8
One Aspect Packaging
  • German retailer found 98 of secondary packaging
    simply unnecessary
  • Much is over-designed for marketing purposes
  • An unwanted or despised service - that if
    avoided would in turn avoid the entire chain of
    compounding losses all the way back to the forest

9
Practices using less paper, and more efficiently
  • Dont print out e-mail
  • Preview documents before printing
  • Edit with groupware
  • Print double-sided automatically
  • Use two-way returnable envelopes
  • Store data electronically
  • Reuse to back side of once-used paper
  • recycle
  • Use lighter-basis-weight paper

10
Material Innovations
  • Engineered wood products have 1.8 - 2.4x yield
    per unit of fiber versus lumber (but with more
    energy chemical inputs)
  • Weighs less, stiffer, free from knots
  • Requires much less wood to build houses
  • Fingerjointing of scrap waste wood
  • Honeycomb panels of cardboard or agricultural
    fibers for homes, furniture

11
Wooden Shipping Pallets
  • Uses 11 of total lumber 2/5 of hardwood cut in
    U.S.
  • 1.5 billion exist, 6 per American, 400 million
    made every year
  • Seldom mended, usually discarded
  • Companies are eliminating pallets or using rugged
    easily recycled ones made of waste plastic
  • Discarded pallets becoming raw material for
    community-based manufacturing

12
Paper Recycling
  • Markets are growing and stabilizing
  • Probably over 50 of fiber inputs to U.S.
    papermaking
  • Industry moving to regional recycle mini-mills

13
Old Growth Forests Beyond Fiber
  • Support indigenous people, fish wildlife
  • Protect biodiversity
  • Hold water
  • Provide recreation, beauty, spiritual renewal
  • Clean the air
  • Sequester enough carbon to offset 1/4 of global
    CO2 emissions
  • Functions many times more valuable than the
    commodity value of wood fiber

14
Authors Summary
  • efficiency and substitution throughout the
    value chain of forest products can displace most
    or all cutting of natural forests - freeing them
    for more valuable roles - while providing the
    same or better service.
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