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Exploring hotspots in thecarbon footprint and energy use   profiles of fresh tomatoes    Girija Page; Brad Ridoutt; Bill B...
Why CF and EF of tomatoes for      Sydney consumer?                         Carbon Footprint (CF)                         ...
Systems studied                  Field                  production                     Greenhouse                     prod...
Field      Low-    Med-                     production tech GH tech GHLocation             Bundaberg Sydney SydneyGrowing ...
System boundary                                                            •GHG (kg CO2)Raw material extraction, productio...
Greenhouse production
Hotspots- Field production                      MJ     kg CO2Mineral/fertilisers   6.5     7.7Pesticides            1.2   ...
Hotspots-Low-tech Sydney                        MJ     kg CO2Minerals/fertilisers   25.00   44.97Pesticides             0....
Hotspots-Med-tech Sydney                      MJ    kg CO2Fertilisers           2.9     3.2Pesticides            0.1     0...
Key resultsBest to eat locally grown tomatoes in season          Energy use and associated emissions                      ...
Further considerationsTrade-offs Different modes of as a out of season?   Eat more processed tomatoes fuel source?     Use...
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Exploring hotspots in the carbon footprint and energy use profiles of fresh tomatoes. Girija Page

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A presentation from the WCCA 2011 event held in Brisbane, Australia.

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Exploring hotspots in the carbon footprint and energy use profiles of fresh tomatoes. Girija Page

  1. 1. Exploring hotspots in thecarbon footprint and energy use profiles of fresh tomatoes Girija Page; Brad Ridoutt; Bill Bellotti
  2. 2. Why CF and EF of tomatoes for Sydney consumer? Carbon Footprint (CF) Energy footprint (EF)BackgroundAgri-food products - environmental impactsFood labelling for environmental burdens may become necessary
  3. 3. Systems studied Field production Greenhouse production Sydney
  4. 4. Field Low- Med- production tech GH tech GHLocation Bundaberg Sydney SydneyGrowing season Mostly year Warmer Year- round months roundCropping cycle 3-5 months 5-6 11 months monthsYield t/ha 60 160 340Artificial heating never minimal mostlyDistance to 1400 25 25market km
  5. 5. System boundary •GHG (kg CO2)Raw material extraction, production •Energy (MJ)and delivery Transport to the Sydney market Cultivation on farm
  6. 6. Greenhouse production
  7. 7. Hotspots- Field production MJ kg CO2Mineral/fertilisers 6.5 7.7Pesticides 1.2 0.9Diesel 8.3 8.3Packaging 8.7 3.7Electricity 9.6 12.8Transport 65.7 66.5
  8. 8. Hotspots-Low-tech Sydney MJ kg CO2Minerals/fertilisers 25.00 44.97Pesticides 0.49 0.36Diesel 4.29 4.09Artificial heating 25.16 29.22Packaging 11.93 31.82Electricity 11.65 8.17Transport 1.63 1.53
  9. 9. Hotspots-Med-tech Sydney MJ kg CO2Fertilisers 2.9 3.2Pesticides 0.1 0.1Diesel 1.9 1.6Artificial heating 89.2 92.4Packaging 4.6 1.5Electricity 0.6 0.8Transport 0.5 0.4
  10. 10. Key resultsBest to eat locally grown tomatoes in season Energy use and associated emissions OR Sydney Heated Sydney greenhousesSupply from Queensland
  11. 11. Further considerationsTrade-offs Different modes of as a out of season? Eat more processed tomatoes fuel source? Use with otherbiomass transport? non-yield environmental considerations?
  12. 12. • Thank you

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