Sustainability

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Sustainability
Winter 2009 Class 15 Jeff Fletcher
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Logistics

• Announcements
• The winter term Advising Day will take place in
  the lounge in front of FRINQ labs (first floor
  Cramer Hall) on Wednesday, February 25th, from
  10am-2pm.
• 1 on 1 meetings today and Wednesday
• Signup going around if you missed last time
• Bring all work from this class (both terms if
  possible)
• Grades and attendance onlinebe sure to check
• Homework Graded
• A few follow-up points
• Several assignments missing
• Water Footprint Reports Due Wednesday
• Be sure to go over the assignment handout

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Follow Up on EWB Presentation

• Video Clean Water For Haiti
• Feedback on Water-Sanitation Presentation?
• Texting!
• What did you learn?
• What do Kay and Grace do for a living?
• They are volunteers that used their own vacation
  time and money to fly to Haiti

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General Reading Questions

• What is the context of the book? Why did the
  author write it? What is his/her likely
  motivation?
• What is the question being investigated? What
  question was he/she trying to answer, or what is
  the main point he/she is trying to make?
• What is the contribution? Is this book likely to
  be important? To whom? What affect might it have
  on the world? Is the impact likely to be narrow
  or broad?
• Based on what youve read so far, is the author
  making his/her points well? Is it well written
  and how does this affect its impact?
• What is the method of investigation? What methods
  does the author use to make his/her point? How
  are his/her arguments structured? What
  alternatives are possible?

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Important Themes

• National Eating Disorder
• Natures way vs. Industrial/Corporate way
• Omnivore's Dilemma
• Domestication by Humans or Domestication of
  Humans
• We are corn
• Dramatic Increase in Corn Yields
• Corn anatomy and sex

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Important Themes

• National Eating Disorder
• Natures way vs. Industrial/Corporate way
• Omnivore's Dilemma
• What should I eat?
• What am I eating?
• Where did it come from?
• Missing a narrow culture around food
• Domestication by Humans or Domestication of
  Humans

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Important Themes

• We are corn
• Dramatic Increase in Corn Yields
• Hybrid vigor
• Plant close together
• Genetically identicaldont compete
• GMO advances
• Ammonium Nitrate Fertilizer
• Sun foods vs. petroleum foods
• Corn anatomy and sex

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Corn

• C3 vs. C4 Grasses
• Different photosynthesis biochemical pathways
• C4 generally evolved later and have advantages
• more efficient use of CO2 and water
• More drought tolerant
• Corn is a C4 Grass, more efficient that C3
• Back to last term carbohydrates
• Carbon 12 vs Carbon 13
• Periodic Table of Element

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Major Grass Grain Crops

• Wheat (C3)
• Corn (Maize) (C4)
• Rice (C3)
• Barley (C3)
• Sorghum (C4)
• Oats (C3)
• Millet (C3 C4 different species)
• Rye (C3)
• Triticale (wheat rye hybrid C3)