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The Food and Water         Paradox              Colin ChartresInternational Water Management Institute                    ...
The Global Food and Water Paradox          Feeding c.2 billion more peoplewith less water for agriculture than we have now...
How has IWMI contributed?A journey through timeand into the futurerecognizing thecontribution of past andpresent staff and...
Demography, Global GDP and Water Withdrawals                            1900 - 2000 • Population increase about 3.6 times ...
Poverty and PopulationPopulationgrowth,dietarychange andpoverty andmalnutritionwill be keydrivers with                    ...
Drivers paint a pessimistic picture even          without climate change• Food production to increase by 70% by 2050 (Worl...
The Green Revolution was fuelled by fertilizer        and irrigation, but at a cost     2.5                               ...
The River Basin approach• IWMI work stressed that irrigation has to be considered in a  basin context and that other compe...
Where does all the water go?                              Thanks to David Molden      Water for a food-secure world       ...
Water Scarcity in 2000From the Comprehensive Assessment of WaterManagement in Agriculture, 2007          Water for a food-...
More Crop Per DropFrom the Comprehensive Assessment of WaterManagement in Agriculture, 2007          Water for a food-secu...
Global Water Withdrawals:historical and projected (after Peter Gleick)           Water for a food-secure world            ...
Approx. 2000 water                      withdrawalsn.b. consumptive demand is less than water withdrawals due to irrigatio...
Climate change impacts• SRESA2 (A2) and SRESB1 (B1) IPCC scenarios show no clear trend in the total  rainfall;• Potential ...
How can we respond to the paradox?   • Improving irrigation efficiency and water     productivity   • Building resilience ...
Increase Productivity                                     6000                                                            ...
Participatory Irrigation Management(PIM)/Water Users Associations – its all about people, institutions and governance• Irr...
Wastewater ReuseCan we develop effective businessmodels that promote safe recyclingand reuse?                             ...
Sustainable intensification – the coming      challenge across many scales• Closing the actual vs potential yield gap (on ...
Sustainable intensification – the coming      challenge across many scales• Closing the actual vs potential yield gap (on ...
What does sustainable intensification mean?• Minimal off-site movement of pollutants• Maintaining downstream flows and wat...
Hot spotsMany developing countries with high population growthand currently low agricultural productivity e.g.• India wher...
Conclusions• Food and water security issues are still  daunting in the developing world• Business as usual paradigms have ...
ConclusionsIf we combine theseapproaches with reductionof food waste we can feed 2billion more people withoutsignificantly...
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Participatory Irrigation Management(PIM)/Water Users Associations The Food and Water Paradox - Dr Colin Chartres

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Participatory Irrigation Management(PIM)/Water Users Associations – its all about people, institutions and governance• Irrigation Management Transfer (IMT) served as the cornerstone of the IWMI, research agenda for nearly a decade.• PIM is now the paradigm for irrigation management, but there is emerging evidence that schemes are failing when financial support is withdrawn.• The trend in South Asia from government canal schemes to individual boreholes has created anarchy and a major groundwater management Region Success Failure headache. S Asia 18 20• How do we reinvigorate PIM? E Asia 7 2 SE Asia 12 24 C Asia 4 14

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