cli food presentation 5.11
TRANSCRIPT
8/6/2019 CLI Food Presentation 5.11
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FOOD AND LOWFOOD AND LOW
CARBON COOKINGCARBON COOKINGReducing your daily emissions through
informed food and cooking decisions
Climate Master Program
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Food is 13% of our Carbon footprint
Climate Master Program: Food
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8 tons of GHGs/year (Average American household)
7 tons = production
� 3 tons CO2
� 1.6 tons Methane
� 2.1 tons Nitrous Oxide
� Remaining 1% = HFCs and other industrial gasses
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How do we know what to do?How do we know what to do?
Climate Master Program: Food
http://barfblog.foodsafety.ksu.edu/tags/local/
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Questions we face Do animal products have more
GHGs than vegetable based?
Are whole foods better? What impact does packaging
have? How important are food miles? Organic ² does it affect the
climate? Does seasonal matter? Does cooking method matter?
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Climate Master Program: Food
The Big Picture
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Food is 13% of US GHG Emissions
Climate Master Program: Food
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CO2 from Energy = Half the Emissions
Climate Master Program: Food
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Energy expended in producing and delivering one food calorie in the U.S. (Figure from
Hein berg and Bomford 2009, adapted from Heller and Keoleian 2000)
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6% of US GHGs are Non-Energy
Related from Agriculture
Climate Master Program: Food
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U.S. Agricultural Greenhouse Gas Sources, 2007. (US-
EPA 2009)
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What it is and how it was madeWhat it is and how it was made
matters mostmatters most ² ² Sugar lifecycleSugar lifecycle
Climate Master Program: Food
http://www.silverspoon.co.uk/home/about-us/carbon-footprint
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Farm; 48.7%
Processing, 27%
Distribution &Disposal, 8.8
Packaging, 7.9
Transport, 7.2
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Ask 4 simple questions about food
impact
Climate Master Program: Food
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What are the inputs and emissions?
1. What is it?
2. How was it made?
3. Where will it go?
4. Where did it come from?
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Climate Master Program: Food
What is it?
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Animal, Vegetable, Other?
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Animal based foods = more GHGsAnimal based foods = more GHGs
Climate Master Program: Foodhttp://news.mongabay.com/2008/0602-ucsc_liaw_food_miles.html
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Animal based foods = more GHGsAnimal based foods = more GHGs
Climate Master Program: Foodhttp://news.mongabay.com/2008/0602-ucsc_liaw_food_miles.html
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http://maps.grida.no/go/graphic/examples-of-ghg-emission-amounts-09
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Animal foods create more emissionsAnimal foods create more emissions
Climate Master Program: Food
http://www.inhabitat.com/2008/07/24/spiffy-backpack-traps-bovine-gas/
http://www.physorg.com/news135003243.html
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Animal foods require more inputs
Climate Master Program: Food
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Animal based foods require more inputs than
vegetable based foods
� The food they eat must be grown
� Transportation for the food
� Care of the animals
�More processing is required
� Packaging is almost mandatory
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Eat less, but betterEat less, but better
1. Organic
2. Grass fed on unfertilized
grasslands
3. Poultry, fish and vegetable
protein sources
Climate Master Program: Food
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Climate Master Program: Food
How was it made?
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Organic, Industrial, Chemical
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Farming has the biggest impact
Climate Master Program: Food
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What is the energy input of producing it?
What emissions are associated with
producing this?
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Organic Foods = fewer GHGsOrganic Foods = fewer GHGs
Climate Master Program: Food
http://science.qj.net/index.php?bgid=359
http://www.mellowmonk.com/2006/03/alter nate-take-on-organic.html
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Less processing = fewer GHGsLess processing = fewer GHGs
What energy inputs and
emissions are associated with
processing?
Food production accounts for
83% of total GHG emissions
(6.8 tons/yr/ household)
Climate Master Program: Food
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Common Processed Foods Include«Common Processed Foods Include«
Climate Master Program: Food
Milk, butter, yogurt
Snack foods
Tinned, frozen, dried foods
Breads, biscuits, crackers
Soda, bottled water
Meat
Sugar
Others
� Apples vs. Apple sauce
� Carrots vs. ´babyµ carrots
� Prepared foods (e.g.frozen dinner)
� Rice and pasta
TIP: Everything is processedif it·s not whole and fresh.Foods you buy in sealed
packages like cans and bagsare processed.
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´Wholeµ Foods are less processed´Wholeµ Foods are less processed
Climate Master Program: Food
Reduce energy and waste from
packaging and processing
http://foodjunta.wordpress.com/2008/04/11/bul
k-foods-and-not-the-kind-you-get-at-costco/
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Climate Master Program: Food
Where will it go?
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Food Waste & Packaging
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FoodFood Waste: Purchase what you Need!Waste: Purchase what you Need!
Climate Master Program: Food
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Wasted food produced GHGs
Climate Master Program: Food
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12% of landfill material is food waste
This decomposes and produces methane
Scraps can be composted
Wasted food means wasted emissions
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More packaging = more GHGs
Climate Master Program: Food
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How much is there?
�More than the food?
What is it made of?
� Recycled/reused content?
What will happen to the packaging?
� Compostable, reusable, recyclable, waste?
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Refuse or reuse to reduce GHGs
Climate Master Program: Food
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� Fruit and vegetablesNo Packaging
�
Bulk food jars, coffeecup, reusable glass milkjar
Completely reusablepackaging
� Produce bagsLimited reuse/light
packaging
� #1 or 2 Plastic, compostable eating-wareRecyclable or
Compostable
� Chips, polystyrene, meat packsWaste
packaging
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Climate Master Program: Food
Where did it comefrom?
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Transportation
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Transportation produces GHGs
Climate Master Program: Food
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How far?
What type of transport?
Is it refrigerated?
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Food miles play a minor role Food miles play a minor role
Transportation = 11%
of food GHG
emissions
Farm to store = 4% of
GHG emissions
Climate Master Program: Food
http://tipsquick.blogspot.com/2009/02/how-
to-reduce-carbon-footprint.html
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Transport less impact than production
Climate Master Program: Food
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NZ and UK dairy production
even after taking into account the
energy used to ship dairy products to
the UK, the NZ dairy sector generatesaround three-quarters of the
greenhouse gas emissions (per kilo of
milk solids) produced by UK producers
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LocalLocal FoodsFoods
Climate Master Program: Food
Support local economy
Strengthen food security
http://lonesomewhistlefarm.com
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Out of season requires more Out of season requires more
transport or energytransport or energy
Climate Master Program: Food
Xxxxx
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Climate Master Program: Food
Cooking & Storing
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Low Carbon food storageLow Carbon food storage
Climate Master Program: Food
Refrigerators and freezers use more energy than any other
appliance
� 11% of household energy
Keep it full
� It·s easier to keep stuff cool than air
Store to reduce food waste
� Buy and use only what you need
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Low Carbon CookingLow Carbon Cooking
Climate Master Program: Food
Ovens ² use the light, don·t open the door!� Cook several dishes at one time or cook larger portions
� Bake with ceramic or glass pans
� Use thermometers or timers to avoid overcooking
� Don·t cover oven racks with foil
� Turn off oven a few minutes before your food is ready
Microwaves use much less energy than conventional stoves. Unplug itto save phantom power load.� Good for reheating meals.
� Thaw food first at room temperature
� To cook faster, place on outer edges of tray
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General Low Carbon Cooking TipsGeneral Low Carbon Cooking Tips
Use toaster oven for smallmeals
Keep appliances & cookwareclean
Use residual heat
Use energy efficientappliances
Fully cover heating element
with pot/pan Use the right sized burner
Stagger dishes at differentrack levels in oven
Glass & ceramic conductheat the best
Cover pots, water boilsmore quickly
Thaw food first, then cook
Use pressure cookers. They
use 50-75 % less energy
Climate Master Program: Food
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Climate Master Program: Food
Summary
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Top ways to reduce food GHGsTop ways to reduce food GHGs
Climate Master Program: Food
1.Less and better animal products2. Minimally processed &packaged
3. Buy only what you need4. Organic5. Seasonal for local foods6. Grown close to home (especially for
veggie products)
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Food Group Activity/HomeworkFood Group Activity/Homework
Climate Master Program: Food
Keep A Food Log For 1-5 Days
1. Log should include everything you eat.2. List out what types of package it came in if any.
3. Note meat or dairy.4. List where it was made or grown.5. Pick one item, list everything required for production
upstream of the retailer. List machines used to harvestit, transport it, package it etc.
6. Identify waste you created (including tossing leftovers).7. Share with a partner next week what you found out about
your item.
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Food ChallengeFood Challenge
Climate Master Program: Food
1. If vegetarian/vegan, for 5 days try to eat onlyunprocessed/unpackaged food. Include as many local foodsas possible.
2. If you consume animal products, cut down your consumption by
3-4 meals for one week (e.g. substitute a veggie burger for beef, grilltofu instead of chicken, fry tempeh instead of fish, oatmeal instead of bacon &eggs)
3. For the very ambitious, cut down on unprocessed/unpackagedfoods AND animal product consumption for the week.
4. Report back to the group your findings, challenges, andsuccesses.
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Special ThanksSpecial Thanks
Climate Master Program: Food
Developed by the University of Oregon Climate Leadership Initiative by
Shane DeMars, Mark Nystrom, Sarah Mazze, Stacy Vynne*
*Some slides from presentation by Theresa Brand, Corvallis, OR Climate Master Trainer
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