starting the conversation€¦ · starting the conversation … global trends welcoming 2.5 million...

STARTING THE

CONVERSATION …

GLOBAL TRENDS

Welcoming 2.5 million new people by 2050…

with rising incomes increasing

consumption…

36% increase in energy demand by 2030

70% food demand increase by 2050

60% water demand increase by 2050

and a greater demand for water in food and

energy sectors… Water needs for power production to rise 85% by 2035

Irrigation doubling by 2050 to meet food demands

when we might face a 40% global shortfall in

water supply by 2030

… in a context of climate change

WHAT IS A NEXUS?

WHAT IS WORKING?

WHAT ARE SOME CHALLENGES?

upstream sediment

delivery

fine sediment

(suspension)

sand and graded

suspension

bedload (sand and

gravel)

land clearingwater diversions

+

-

dam construction

(size/capacity)

-

precipitation

rainfall variability

temperature

groundwater use

agriculture

productivity

+-

food demand

food production

agriculture land

+

+

+

population

+ desired agriculture

land

-

+

fish catch

+

desired crop consumption

from local production

desired fish consumption

from local production

desired meat consumption

from local production

+

+

+

+

gdp/income

fish price (import)

crop price (import)

meat price (import)

+

desired fish catch+

+

fish stock

+

settlement land

grazing land-

-

++

meat production

crop production

++

food self

sufficiency<food demand>-+

fish migration-

-

fish breedingfish mortality

+

+

+

-

+electricity supply+

+

employment+

+

-

construction materials

extraction

-

+

sediment budget

(transboundary impacts)

electricity demand

++

energy self sufficiency

(for local use)

-

+

+

+

delta economic productivity

(transboundary dimension)

+

<fish catch>

-

-

-

-

-

+

+

+

<precipitation>-

R1

R2

R3

R4

R5

B1

B2

B3

B4 B5

R6

B6

food price+++

R7

Assumption: local

production is cheaper than

import

habitat and biodiversity

(dolphin population)

+

sustainable fishing

practices

+

-

tourism

+

<population>

+

-

-

<agriculture

productivity>

-

road infrastructure

investment

access to the ssk

+

+

<fine sediment

(suspension)>

+

population

displacement

+

+

fertilizer and

pesticide use

+

<fertilizer and

pesticide use>

water qualityenvironmental

quality

<land clearing>

++

-

--

<environmental

quality>

human health+

+

soil quality

-

+

<water quality>

-

B7

-

ecological ag

practices+

land use planning-

immigration

policy

law enforcement

<law

enforcement>

energy

management

climate

change+

+

+

<land clearing>

+

solid and liquid

waste

<knowledge>

-

+

<knowledge>

adaptation

strategy

+technology

+

<knowledge>

-

algae bloom

water for

agriculture

water for

consumption

illigal fishing

culture-

<knowledge>

+

+

-

++

Flooded forestand forest +

+

river bank

erosion

+

+

polution from mining

-

<construction

materials extraction>

+

<land clearing> +

water

transport -

+

DATA FOR NEXUS GOVERNACEFOOD-ENERGY-WATER RISKS IN CAMBODIA

Risks, vulnerabilities and

opportunities at different

scales

Insights, not perfect

predictions

REAL options to act. Ways

to adapt, not to ‘fix’

LOOK FOR …