Water footprints in contextAaron BurtonMay 2011IEMA Wales
Outline Water Resources Strategy for Wales – current and future pressures Water footprinting concept Scoping study – water...
Pressures on Water Resources in Wales                     Water Resources Strategy for Wales                     www.envir...
January             February           March     April       May                      June  July              Aug         ...
Waterfootprintconcept
[Hoekstra & Chapagain, 2008]
[Hoekstra & Chapagain, 2008]
[Hoekstra & Chapagain, 2008]
UK Water Footprint      Agricultural footprint – food and fibre      http://www.waterfootprint.org/?page=files/UnitedKingdom
The water footprint of a productGreen water footprint► volume of rainwater evaporated or incorporated into product.Blue wa...
The water footprint:making a link between consumption in one place andimpacts on water systems elsewhereShrinking Aral Sea
Scoping study – keyfood items
Objectives1. Present existing water footprinting   methodologies and agree the best available   model for use in Wales.2. ...
The water footprint of a productGreen water footprint► volume of rainwater evaporated or incorporated into product.Blue wa...
Potatoes (Wales and Israel)                           80                           70                           60  Water ...
Tomatoes (Wales and Spain)                           70                           60  Water Footprint (m3/t)              ...
Lamb (Wales and New Zealand)                           12,000                           10,000  Water Footprint (m3/t)    ...
Potatoes           Tomatoes
Food Strategy for Wales Food industry key water user Impacts of growing more food in Wales vs imports Opportunities for ma...
Adding context –water efficiency andsupply chains
Water footprint:  why businesses are interestedWater risks for business• Physical risk• Reputational risk• Regulatory risk...
Water footprint of a business
Water footprint – Carbon footprintWater footprint                             Carbon footprint•   measures freshwater appr...
Water and energy nexus               Warehouses           Sport and Leisure                      Retail                   ...
Water footprint – Life cycle assessmentWater footprint                              LCA•   measures freshwater appropriati...
WRAP Report      http://www.wrapcymru.org.uk/wwf_wales.html
Further work Water footprint sustainability assessment (case studies) Other sectors and industries Grey water implications...
Thanks, Questions?
Water Footprinting Presentation for IEMA Wales
Water Footprinting Presentation for IEMA Wales
Water Footprinting Presentation for IEMA Wales
Water Footprinting Presentation for IEMA Wales
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Water Footprinting Presentation for IEMA Wales

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IEMA Wales presentation May 2011 http://www.iema.net/event-reports?aid=20023

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Water Footprinting Presentation for IEMA Wales

  1. 1. Water footprints in contextAaron BurtonMay 2011IEMA Wales
  2. 2. Outline Water Resources Strategy for Wales – current and future pressures Water footprinting concept Scoping study – water footprint of key food items Water footprinting in context
  3. 3. Pressures on Water Resources in Wales Water Resources Strategy for Wales www.environment-agency.gov.uk/wrs
  4. 4. January February March April May June July Aug September October November December 10 to 15 per cent increase 5 to 10 per cent increase Percentage change in mean monthly flow 5 per cent increase to 5 per cent decrease between now and the 2050s using the 5 to 10 per cent decrease medium-high UKCIP02 scenario 10 to 20 per cent decrease 20 to 30 per cent decrease 30 to 50 per cent decrease 50 to 80 per cent decrease
  5. 5. Waterfootprintconcept
  6. 6. [Hoekstra & Chapagain, 2008]
  7. 7. [Hoekstra & Chapagain, 2008]
  8. 8. [Hoekstra & Chapagain, 2008]
  9. 9. UK Water Footprint Agricultural footprint – food and fibre http://www.waterfootprint.org/?page=files/UnitedKingdom
  10. 10. The water footprint of a productGreen water footprint► volume of rainwater evaporated or incorporated into product.Blue water footprint► volume of surface or groundwater evaporated,incorporated into product or returned to other catchment or the sea.Grey water footprint► volume of polluted water.
  11. 11. The water footprint:making a link between consumption in one place andimpacts on water systems elsewhereShrinking Aral Sea
  12. 12. Scoping study – keyfood items
  13. 13. Objectives1. Present existing water footprinting methodologies and agree the best available model for use in Wales.2. Assess the global and local water footprint for Wales, by looking at specific food items.3. Consider the specific impacts on water resources of growing these imported products in Wales.
  14. 14. The water footprint of a productGreen water footprint► volume of rainwater evaporated or incorporated into product.Blue water footprint► volume of surface or groundwater evaporated,incorporated into product or returned to other catchment or the sea.Grey water footprint► volume of polluted water.
  15. 15. Potatoes (Wales and Israel) 80 70 60 Water Footprint (m3/t) 50 Potato (Wales) 40 Potato (Israel) 30 20 10 0 Green Blue Total Green Blue Total Volumetric WF Stress-weighted WF
  16. 16. Tomatoes (Wales and Spain) 70 60 Water Footprint (m3/t) 50 40 Tomato (Wales) Tomato (Spain - average) 30 20 10 0 Green Blue Total Green Blue Total Volumetric WF Stress-weighted WF
  17. 17. Lamb (Wales and New Zealand) 12,000 10,000 Water Footprint (m3/t) 8,000 Lamb (Wales) 6,000 Lamb (New Zealand) 4,000 2,000 0 Green Blue Total Green Blue Total Volumetric WF Stress-weighted WF
  18. 18. Potatoes Tomatoes
  19. 19. Food Strategy for Wales Food industry key water user Impacts of growing more food in Wales vs imports Opportunities for marketing Welsh produce
  20. 20. Adding context –water efficiency andsupply chains
  21. 21. Water footprint: why businesses are interestedWater risks for business• Physical risk• Reputational risk• Regulatory risk• Financial riskWater opportunity for business• frontrunner advantage• corporate image• Corporate social responsibility• Part of water governance wihtin existing environmental management
  22. 22. Water footprint of a business
  23. 23. Water footprint – Carbon footprintWater footprint Carbon footprint• measures freshwater appropriation • measures emission GH-gasses• spatial and temporal dimension • no spatial / temporal dimension• actual, locally specific values • global average values• always referring to full supply-chain • supply-chain included only in ‘scope 3• focus on reducing own water footprint carbon accounting’ (water use units are not • many efforts focused on offsetting interchangeable) (carbon emission units are interchangeable) Water footprint and carbon footprint are complementary tools. [Hoekstra et al., 2009]
  24. 24. Water and energy nexus Warehouses Sport and Leisure Retail Other Catering Hotel and Catering Computing Cooling & Ventilation Health Hot Water Heating Government Lighting Education OtherCommunication and Transport Commercial Offices 0 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 Thousand tonnes of oil equivalent DECC (2009) Energy Consumption in the UK
  25. 25. Water footprint – Life cycle assessmentWater footprint LCA• measures freshwater appropriation • measures overall environmental impact• multi-dimensional (type of water use, • no spatial dimension location, timing)• actual water volumes, no weighing • weighing water volumes based on impactsFor companies, water footprint assessment and LCA are complementary tools.• WF assessment is a tool to support formulation of a sustainable water management strategy in operations and supply chain.• LCA is a tool to compare the overall environmental impact of different products.WF is a general indicator of water use; application of WF in inventory phase of LCA is one particular application. [Hoekstra et al., 2009]
  26. 26. WRAP Report http://www.wrapcymru.org.uk/wwf_wales.html
  27. 27. Further work Water footprint sustainability assessment (case studies) Other sectors and industries Grey water implications (WFD & Europe Blueprint) EC Blueprint WFD – understand material and virtual flows between catchments Green water impacts of landuse change Accounting for droughts/ climate change Food Strategy for Wales Action Plan Data issues for Wales
  28. 28. Thanks, Questions?
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