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ENSC 315 (28)
Lecture 14

ENSC 315 Lecture 14: Food Waste

10 Pages
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Department
Environmental Studies
Course Code
ENSC 315
Professor
Susan Belyea

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Food Waste Wednesday, March 15, 2017 8:37 AM Food Waste • Can we significantly increase global food availability by reducing food waste? What is it? • Food Waste: food lost or wasted at all points along the supply chain ○ Edible parts for humans ○ Food Loss Before Market: production, harvest, storage, transport ○ Food Waste In Market: retail, restaurant, consumer ○ Hard to measure, especially at consumer level • 1/3 of food wasted globally • 1.3 billion tonnes per year Global Food Loss/Waste: = 32% of food by weight = 1.3 billion tonnes = 24% kcal • World ~ $1 trillion • Canada ~ $27 Billion • USA ~ $191 billion Food Waste Wednesday, March 15, 2017 8:37 AM Food Waste • Can we significantly increase global food availability by reducing food waste? What is it? • Food Waste: food lost or wasted at all points along the supply chain ○ Edible parts for humans ○ Food Loss Before Market: production, harvest, storage, transport ○ Food Waste In Market: retail, restaurant, consumer ○ Hard to measure, especially at consumer level • 1/3 of food wasted globally • 1.3 billion tonnes per year Global Food Loss/Waste: = 32% of food by weight = 1.3 billion tonnes = 24% kcal • World ~ $1 trillion • Canada ~ $27 Billion • USA ~ $191 billion Food Waste in Low Income Countries (LIC) vs. High Income Countries (HIC) • LIC 630 million tonnes ○ Food loss ○ Production, harvest, storage, etc. • HIC 670 million tonnes ○ Food waste ○ Retail, consumer What else are we wasting? • Water -virtual water • Energy - embedded energy • Inputs - chemical and organic • Land - the productive capacity of land • Labour - people and animal • Biodiversity, soil health Food Waste and Water • Food has a water footprint • "Throwing out the baby (carrots) with the bathwater" • Irrigation water wasted in food waste enough for domestic water use (200 I/day) for 9 billion people • 1 kg beef = 8 1/4 pounders = 15 t of water What Else? • Also wasting agricultural inputs -seeds, fertilizers (chemical, manure, green), pesticides, herbicides, fungicides, etc. • Land and soil- clearing land, nutrient mining, biodiversity, soil erosion, salinization, etc. all to produce food waste! Food Loss and Waste along the Supply Chain Food Waste in Low Income Countries (LIC) vs. High Income Countries (HIC) • LIC 630 million tonnes ○ Food loss ○ Production, harvest, storage, etc. • HIC 670 million tonnes ○ Food waste ○ Retail, consumer What else are we wasting? • Water -virtual water • Energy - embedded energy • Inputs - chemical and organic • Land - the productive capacity of land • Labour - people and animal • Biodiversity, soil health Food Waste and Water • Food has a water footprint • "Throwing out the baby (carrots) with the bathwater" • Irrigation water wasted in food was
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