The water footprint of humans Flashcards

1
Q

WF

A

Water Footprint

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2
Q

Virtual water flow

A

All the water needed for 1 product and its flow trough trade

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3
Q

Countries and water

A
  • they are often not aware of their own WF

- Not aware if production of specific goods can lead to water depletion in (another) country

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4
Q

Blue WF

A

consumption of surface and groundwater

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5
Q

Green WF

A

consumption of rainwater

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6
Q

Grey WF

A

indicator of the degree of freshwater pollution

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7
Q

Top 3 countries largest water footprint

A

1) China
2) India
3) USA

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8
Q

Largest part of WF of a country is

A

agriculture

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9
Q

The use of … and … is not visible in the … of a product

A

water
water stress
price

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10
Q

Many agri producing countries

A

are under water stress, using their limiting blue water supply for export products

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11
Q

WF is largely influenced by

A

consumption pattern.

large numbers and luxury products have a larger WF

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12
Q

What determines the WF of a product

A

location of production

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13
Q

External WF

A

water used to produce products we consume

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14
Q

Two factors that determine the magnitude of WF per country

A

1) volume and pattern of consumption

2) the WF per ton of consumped products

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15
Q

… of the global WF was for …

A

20%

export

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16
Q

water is not factored in

A

price of traded commodities

17
Q

the WF at home

A

is only 1% of the WF of a consumer

18
Q

… % of the WF of consumers is ….

A

99%

invisible in bought products

19
Q

86% of WF of consumers

A

comes from agricultural products

20
Q

There can be a conflict between … and … footprint because

A

water
carbon

a water friendly option might be carbon intensive, or the other way around

21
Q

Special about water (6)

A
  • complex specific resource (economic solutions will never work) (CPR)
  • local but also global
  • flowing, limited storage possibilities
  • not transportable over large distances
  • renewable but finite
  • downstream externalities
22
Q

WF of animals

A

are difficult to establish because it depends on the type of feed ant the type of farm (and location)

23
Q

29% of the total WF is

A

from animals

24
Q

WF animal products

A

Feed conversion efficiency (high efficiency has high WF) vs. WF of feed

25
Addressing water scarcity
by linking nutritional values to water use
26
Footprints are an indicator of
human pressure on the environment
27
Environmental footprints
measure how much of the available capacity within the planetary boundaries is already consumed
28
difficulty with planetary boundaries
- boundaries determined by humans often have uncertainties - boundaries are sometimes reached by consensus (like the 2 degree scenario)
29
Companies almost always only set targets for ..... footprints and neglect ...
direct (operational) | Indirect (supply-chain)
30
Considering the ... and the global WF, the ... needs to be ...
projected population increase average WF per capita reduced
31
Option to reduce WF
buy products with low footprints
32
difficulties in reducing WF
often there is no data available for the consumer on what the WF of a product is