food and low carbon cooking
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Reducing your daily emissions through informed food and cooking decisions. Food and Low Carbon Cooking. Climate Master Program. Food is 13% of our Carbon footprint. 8 tons of GHGs/year (Average American household) 7 tons = production 3 tons CO 2 1.6 tons Methane 2.1 tons Nitrous Oxide - PowerPoint PPT PresentationTRANSCRIPT
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FOOD AND LOW CARBON COOKING
Reducing 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
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?
Climate Master Program: Foodhttp://barfblog.foodsafety.ksu.edu/tags/local/
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 – 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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GHG’s from food are not just CO2
Climate Master Program: Food
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Emissions split between pre-and post-farm
Climate Master Program: Food
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Energy use looks different than GHGs
Climate Master Program: Food
Energy expended in producing and delivering one food calorie in the U.S. (Figure from Heinberg and Bomford 2009, adapted from Heller and Keoleian 2000)
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Ask 4 simple questions about food impact
Climate Master Program: Food
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?Animal, Vegetable, Other?
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Animal 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 GHGs
Climate Master Program: Foodhttp://news.mongabay.com/2008/0602-ucsc_liaw_food_miles.html
http://maps.grida.no/go/graphic/examples-of-ghg-emission-amounts-09
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Animal 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
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 better
1. Poultry, fish and vegetable protein sources
2. Jury is out on organic
Climate Master Program: Food
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Climate Master Program: Food
How was it made?
Organic, Industrial, Chemical
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Less 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…
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. “baby” carrots Prepared foods (e.g.
frozen dinner) Rice and pasta
TIP: Everything is processed if it’s not whole and fresh. Foods you buy in sealed packages like cans and bags are processed.
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“Whole” Foods are less processed
Climate Master Program: Food
Reduce energy and waste from packaging and processing
http://foodjunta.wordpress.com/2008/04/11/bulk-foods-and-not-the-kind-you-get-at-costco/
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Organic Foods may have fewer GHGs
Climate Master Program: Food
http://science.qj.net/index.php?bgid=359
http://www.mellowmonk.com/2006/03/alternate-take-on-organic.html
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Climate Master Program: Food
Where will it go?Food Waste & Packaging
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Food Waste: Purchase what you Need!
Climate Master Program: Food
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Wasted food produced GHGs
Climate Master Program: Food
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
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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Climate Master Program: Food
Where did it come from?
Transportation
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Transportation produces GHGs
Climate Master Program: Food
How far?What type of transport? Is it refrigerated?
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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
NZ and UK dairy production even after taking into account the
energy used to ship dairy products to the UK, the NZ dairy sector generates around three-quarters of the greenhouse gas emissions (per kilo of milk solids) produced by UK producers
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Local Foods
Climate Master Program: Food
Support local economyStrengthen food security
http://lonesomewhistlefarm.com
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Out of season requires more transport or energy
Climate Master Program: Food
Xxxxx
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Climate Master Program: Food
Cooking & Storing
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Low 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 Cooking
Climate Master Program: Food
Ovens – 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 it to 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 Tips Use toaster oven for
small meals Keep appliances &
cookware clean Use residual heat Use energy efficient
appliances Fully cover heating
element with pot/pan Use the right sized
burner
Stagger dishes at different rack levels in oven
Glass & ceramic conduct heat the best
Cover pots, water boils more 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 GHGs
Climate Master Program: Food
1.Less animal products2.Minimally processed
&packaged3. Buy only what you need4. Seasonal for local foods5. Grown close to home (especially
for veggie products) 6. Organic?
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Food Challenge
Climate Master Program: Food
1. If vegetarian/vegan, for 5 days try to eat only unprocessed/unpackaged food. Include as many local foods as 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, grill tofu instead of chicken, fry tempeh instead of fish, oatmeal instead of bacon & eggs)
3. For the very ambitious, cut down on unprocessed/unpackaged foods AND animal product consumption for the week.
4. Report back to the group your findings, challenges, and successes.
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Special 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