Sustainability Winter 2009 Class 15 Jeff Fletcher

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 online—be 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

Follow Up on EWB Presentation Video Clean Water For HaitiClean 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

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 you’ve 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?

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

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

Important Themes We are corn Dramatic Increase in Corn Yields –Hybrid vigor –Plant close together –Genetically identical—don’t compete –GMO advances –Ammonium Nitrate Fertilizer –Sun foods vs. petroleum foods Corn anatomy and sex

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 ElementPeriodic Table of Element

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)