Eat Locally


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Will harvesting a sheep, rather than buying beef at the store, conserve energy (gasoline)?

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Eat Locally

  1. 2. Everyone tells me to “eat locally.” Why? <ul><li>Help your local economy </li></ul><ul><li>Local means fresher </li></ul><ul><li>Know what you are eating: Pesticides? Genetically modified? Free range? </li></ul><ul><li>Save energy resources! </li></ul><ul><ul><li>“ A study in Iowa found that a regional diet consumed 17 times less oil and gas than a typical diet based on food shipped across the country.” ( ) </li></ul></ul><ul><ul><li>“ Estimates on how long the average food travels from pasture to plate range from 1200 to 2500 miles. A lot of energy is expended freezing, refrigerating, and trucking that food around. Eating locally grown food means less fossil fuel burned in preparation and transport.” ( http:// ) </li></ul></ul>
  2. 3. How much energy can I save by eating “locally”? <ul><li>Sheep tag (ewe) for October 2007 </li></ul><ul><li>What if I substituted my beef consumption with a locally harvested Dall sheep? Would this use less energy? </li></ul><ul><li>How do I compare energy consumption to harvest beef versus wild sheep? </li></ul>
  3. 4. Methodology <ul><li>Need to find </li></ul><ul><li>amount of energy consumed </li></ul><ul><li>pound of meat harvested </li></ul><ul><li>= </li></ul><ul><li>gallons of gas </li></ul><ul><li>lb of edible meat </li></ul><ul><li>Which numbers will be the most comparable for sheep versus beef? </li></ul>
  4. 5. What’s the BEEF? <ul><li>Beef: Internet figures vary. Some include energy consumption figures for food, slaughter, processing, and packaging. </li></ul><ul><li>Sheep: No good way to calculate energy figures for processing and packaging a sheep, so… </li></ul>
  5. 6. <ul><li>The best figures for comparison will be those that calculate energy consumption in terms of “food consumed” and “slaughtering” only. </li></ul><ul><li>For a cow , we will ignore numbers that involve processing, shipping, etc. </li></ul><ul><li>For a sheep , this means I will calculate the gallons of gas needed to harvest the meat. </li></ul><ul><li>In other words: </li></ul>
  6. 7. Need to Find <ul><li>How much gasoline is used to procure bullets, game bags, etc? </li></ul><ul><li>How much gasoline is used driving back and forth to the hunt(s)? </li></ul><ul><li>How many pounds of edible meat did we salvage? (Weighed after carving) </li></ul>gallons of gas lb of meat
  7. 8. The Hunt
  8. 10. Where Have All the Sheep Gone?
  9. 11. Data Collection – Sheep Miles Miles/Gallon = Miles x Gallon Miles = Gallons Used
  10. 12. Data Collection - Beef <ul><li>How much energy goes into raising a pound of beef? </li></ul><ul><li>Remember: use numbers that compare </li></ul><ul><li>Sources say… </li></ul><ul><li>Unclear if all of these </li></ul><ul><li>are carcass weight or </li></ul><ul><li>edible meat </li></ul>
  11. 13. gallons of gas lb of meat <ul><li>Beef? </li></ul><ul><ul><ul><ul><ul><li>CHECK! </li></ul></ul></ul></ul></ul><ul><li>Sheep? </li></ul><ul><ul><ul><ul><ul><li>Gallons of Gas </li></ul></ul></ul></ul></ul><ul><ul><ul><ul><ul><li>But no meat! </li></ul></ul></ul></ul></ul>
  12. 14. No sheep! Now what? <ul><li>Call it quits?? </li></ul><ul><ul><li>Boo. Not after all this work. </li></ul></ul><ul><li>Find numbers to substitute?? </li></ul><ul><ul><li>Yay!! </li></ul></ul><ul><ul><li>Check the internet for average carcass weight of a Dall sheep </li></ul></ul><ul><ul><li>Use this number to calculate what our energy consumption per pound would have been , use to compare with beef statistics </li></ul></ul>
  13. 15. The Alaska Fish and Game says… <ul><li>The average “boned-out carcass weight” (all bones except ribs removed) of a Dall Sheep is between 40 and 80 pounds </li></ul><ul><ul><li>( </li></ul></ul><ul><li>This number is an average for both sexes. Our tag was for a female, so I will use numbers on the smaller side . </li></ul>
  14. 16. = Gallons Gas Pound of Meat
  15. 17. What if? <ul><li>30 pounds of sheep meat? </li></ul><ul><ul><li>Energy savings: 0.339 – 0.368 = -0.029 g/lb </li></ul></ul><ul><ul><li>OOPS! </li></ul></ul><ul><li>40 pounds of sheep meat? </li></ul><ul><ul><li>Energy savings: 0.339 – 0.276 = 0.063 g/lb </li></ul></ul><ul><ul><li>Or the same energy you would consume watching 20 hours of TV ( </li></ul></ul><ul><li>50 pounds of sheep meat? </li></ul><ul><ul><li>Energy savings: 0.339 – 0.221 = 0.118 g/lb </li></ul></ul>
  16. 18. So? That doesn’t sound like very much energy saved, Ms. G. <ul><li>If the average American eats 30 pounds of hamburger/year, this could mean gasoline savings between 1.89 and 3.54 gallons per person ( ) </li></ul><ul><li>If 50 people did it? Savings of 94.5 – 177 gallons </li></ul><ul><li>100? 189 – 354 gallons of gasoline saved! </li></ul>
  17. 19. So? That doesn’t sound like very much energy saved, Ms. G. <ul><li>If the average American eats 69.5 pounds of hamburger/year, this could mean gasoline savings between 4.38 and 8.20 gallons per person ( ) </li></ul><ul><li>If 50 people did it? Savings of 219 – 410 gallons </li></ul><ul><li>100? 438 – 820 gallons of gasoline saved! </li></ul><ul><li>Provided, of course, you get at least 40 pounds of meat! </li></ul>
  18. 20. The Verdict Is… <ul><li>Yes, you can help the environment by eating locally </li></ul><ul><li>Bigger is better! Economies of scale </li></ul><ul><li>Other Considerations: </li></ul><ul><ul><li>Fun being outdoors, the “sport”, great exercise </li></ul></ul><ul><ul><li>Beef statistics inexact – another way to find info? </li></ul></ul><ul><ul><li>Could have consolidated trips to use less gasoline (ie, only one trip to the store instead of two) </li></ul></ul><ul><ul><li>Store trips used to purchase other goods, not just hunting supplies </li></ul></ul><ul><li>Next time: </li></ul><ul><ul><li>What if you went moose hunting? </li></ul></ul><ul><ul><li>Numbers that include transportation – big savings for Alaskans! </li></ul></ul><ul><ul><li>Price Factor?? </li></ul></ul>
  19. 21. Beef Energy Figures from: <ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul>
  20. 22. Image Sources <ul><li>'tGroeneSpoorTL-culiblog-thumb.jpg </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li>http:// </li></ul><ul><li> </li></ul>
  21. 23. Data Collection Sources <ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li> </li></ul><ul><li>http:// </li></ul><ul><li> </li></ul>
  22. 24. Eat Locally, Think Globally It’s dinnertime. Do you know where your food is...from? Eat responsibly. Eat sustainably.