The Andean Glacier and Water Atlas

8.4.2008), or the conflict between the residents of the Peruvian town of Espinar and the irrigation project Majes-Siguas II, in which the citizens perceive the danger of reduced water supply due to the irrigation project (Columbia 4.10.2010, La Republica 19.12.2016). To tackle the increasing water stress of the Andean region, policies for sustainable water management and adaptation strategies to cope with reduced water availability and higher demand in the future, as well as the implementation of such policies and strategies, are urgently needed to enable water security both in present day and in the future (Ragettli, Immerzeel & Pellicciotti, 2016).

Competing uses, especially between local needs and industrial water demands, and the decreasing availability of water, can lead to conflicts over water resources. Within the Andean countries, water resources are unevenly spread and while water is rarely the only or most important cause of conflict, it often worsens existing frictions between actors (Wolf et al., 2005; Vuille et al., 2018). Conflicts related to water occurs for a diversity of reasons, but the rights and access to water, as well as the quantity and quality of the water, is often at the core of the conflicts (Wolf et al., 2005). In the Andean region, there are several severe examples of conflicting and competing uses of water, such as the water war in Bolivia´s third biggest city, Cochabamba (Economist 10.2.2000, New Yorker

Contribution of glacier melt to domestic water use and irrigated area During a month with maximal glacier melt contribution Contr bution of glaci r melt to domestic wat r use and irrigated area During a month with maximal glacier melt contribution and irrigated area

Irrigation Hectares of land where glacier melt contribution is between 45 and 100%

Domestic water use Number of people for which glacier melt contributes...

Irrigation Hectares of land wher glacier melt contribution is between 45 and 100%

Domestic water use Numb r f people for which glacier melt contributes...

Domestic water use Number of people for which glacier melt contributes...

i i

i i

...between 45 and 80% ...between 80 and 100%

...between 45 and 80% ...between 80 and 100%

i i

402 000

402 000

...between 45 and 80% ...between 80 and 100%

= 1 000 people

= 1 000 people

= 1 000 people

0

10

20

30

40

50

60

70

80

90

100

0

10

20

30

40

50

60

70

80

90

100

Hectares of land where glacial melt contribution is between 80 and 100% 70 80

Hectares of land where glacial melt contribution is between 80 and 100%

50

60

90

100

iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiii ii iiiii 515 400 i i i i i i i iiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii i i i i i i i i i iiiiiiii i i i i i i i i i iiiiiiii i i i i i i i i i iiiiiiii i i i i i i i i i iiiiiiii ii iiiii 515 400 i

BOLIVIA iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii BOLIVIA

61 000

61 000

79 300

79 300

iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiii iii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii 360 000 i i i i i i i i i i i i i i i i i i i i i i i i i i i iiiiiiii 360 000 i i i i i

iiiiiiii iiiiiiii iiiiiiii

PERU iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiii iii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii 360 000 PERU 18 100 18 100

iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiii iiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiii 256 000 i i i i i i i i i i i i i i i i i i i iiiiii 256 000 i i i i i

iiiiiiii iiiiiiii

655

655

CHILE iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiii iiiiii 256 000 CHILE 50 50

429

429

iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii ii iii i ii ii iii 95 000 i i i i i i i i

ARGENTINA

ARGENTINA

95 000

iiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii iiiiiiiiii ii iii

95 000

Source: Buytaert,W., et al. Glacier melt contribution to water resources in the Andes

Source: Buytaert,W., et al. Glacier melt contribution to water r sources in the Andes

Source: Buytaert,W., et al. Glacier melt contribution to water resources in the Andes

GEO-GRAPHICS / GRID-Arendal 2018

60

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