Diet & CO2 Emissions

Diet and CO2 emissions

Your Diet makes a lot of difference to your CO2 emissions. In GHG-Energy Calc, energy inputs and CO2e emissions are estimated for the production, manufacturing and transporting of each category of the foods/ groceries. Methane emissions from the digestive processes of ruminant animals contributes to the high CO2e emissions from red meat consumption.

A typical Australian consumes 570 - 700 kg of food, bought drinks and groceries per year. You can reduce the embodied emissions from the food you consume by eating:

Three typical Australian diets (for one person) are compared in the table below:

Kg or L of foods / drinks groceries consumed each week, based on about 11 kg of food/ groceries per person plus bought drinks

1. Vegetarian – fresh, local, minimised packaging; no bought drinks (make drinks at home); no meals out

2. White meats (can include kangaroo), reduced dairy, local, fresh foods; includes some bottled non-alcoholic drinks; one meal out

3. About 300 g of red meat or other meats per day; diet high in dairy, packaged and bottled foods and drinks (including alcohol); 2 meals out

L1 (kg or L / wk) – Fresh/minimally processed. Fresh fruit/veg, grains, flour, rolled oats

5

2

0.5

L2 (kg or L / wk) - Pasta, biscuits, rice, muesli, pulses, soy products, canned/bottled cool/juice drinks, cakes, breads

1.5

3

2

M1 (kg or L / wk) - Milks (dairy and soy)

2

2

2

M2 (kg or L / wk) - Processed containerised foods. Canned/bottled/frozen fruit/veg, dried fruits/nuts, sugar, beer, breakfast cereals, honey, soaps, papers, eggs, pastries

1.5

2.5

2.5

MH1 (kg or L / wk) - Chicken meat, chocolates, wine, jam, potato chips, cooking oil, margarine, tea/herbs, ground coffee, dairy – yoghurts, ice creams custards, restaurant meals

0.4

2.5

3

H1 (kg or L / wk) - Soup powders, instant coffee, spirits; pork, fish, detergents, soap, shampoo, disposable nappies

0.5

1

1

H2 (kg or L / wk) - Red meats (lamb and other ruminants), Dairy - cheese/butter/cream/milk powders

0.3

0.3

1

H3 (kg / wk) Beef

0

0

1.5

TOTAL kg or L per week of food and drink

11.2

13.3

13.5

TOTAL CO2e per year
t CO2e/YEAR
(from GHG-Energy Calc)

1

2.1

3.9