Sustainability

Question 1

Malthus hypotheses

Answer 1

population growth is faster than production of food

Question 2

External pressure to food production

Answer 2

population growth, urbanization, economic development, globalization, climate change, water stress, envionmental degradation

Question 3

triple burden of malnutrition

Answer 3

undernutrition, micronutrient defieciency, overweight

Question 4

food system

Answer 4

input > production > processing > distribution > marketing > shoppinh > consumer > waste

Question 5

sustainable nutrition

Answer 5

nutrition that is good for health & environment

Question 6

3 methods for calculating environmental impacts of diets

Answer 6

1 life cycle assessment (LCA)
2 input-output analysis
3 integrated assessments

Question 7

life cycle assessment

Answer 7

determine the foodprint for the different sectors. Remember the video of the guy with the strawberry yoghurt drink. Every stepp in the cycle is important.

Question 8

input-output analysis

Answer 8

involves use of aggregate sector level data on how much environmental impacts can attributes to each other. Remember the input-output table video.

Question 9

integrated assessments

Answer 9

global equilibrium models. Multiple segments are moddeled into one framework. Often used with policy.

Question 10

Eating insects could save the world because:

a. The need little water
b. They are warm blooded
c. They deliver carbohydrates while eating little food

Answer 10

a the need of little water

Question 11

2. With respect to research on environmental indicators in relation to diet, a main factor that has been studied is:
   a. Acidification
   b. Water storage
   c. Land use

Answer 11

c land use

Question 12

3. Which molecule has the highest greenhouse warming potential?
   a. CO2
   b. N2O
   c. O2

Answer 12

b N2O

Question 13

4. The food system currently uses:
   a. 30% of all ice-free land
   b. 50% of all ice-free land
   c. 70% of all ice-free land

Answer 13

30% of land

70% of water

Question 14

2 environmental indicators in relation to diet

Answer 14

1 resource depletion
2 pollution (verontreiniging)

Question 15

Benefits of soil

Answer 15

1 basis for healthy food production
2 host a quarter of biodiversity
3 help to combat and adopt climate change
4 essential for food security, store and filter water

Question 16

Reduced quality of soil due to

Answer 16

loss of soil nutritients
erosion
water logging
compaction (use of heavy machines)
chemical damage

Question 17

Eutrophication

Answer 17

nutrient load up > plants flourish > algae bloom, O2 decreases > decomposition, further O2 decreases > death of ecosystem

Question 18

Nitrogen Use Efficiency NUE

Answer 18

N available for consumption / new N input

Question 19

Strageties for a more sustainable food system

Answer 19

1 changing dietary consumption
2 sustainable intensification (efficicanct use of land, nutrient & water)
3 smart extensification (producing with more care)
4 close nutrient cycles (less losses of N)
5 improve soil and biological N fixation

Question 20

Nutrient pollution

Answer 20

measured as the amount of nutrients that leave a farming system and enter the surrounding environment.

Question 21

Feed Conversation Ratio FCR

Answer 21

the amount of feed protein that is required to produce a gram a edible animal protein
egg 2.6
diary 3.9
poultry 4.9
pork 5.7
goat meat 14.4
beef 19.3

Question 22

Diets

Answer 22

mediterranean
vegetarian
pescetarian
vegan

Question 23

three pillars of sustainability

Answer 23

ecology
economy
society

Question 24

3 most important envionmental problems

Answer 24

loss of biodiversity
nitrogen cycle
climate change