Global Warming Potential Compared
Measured in kilograms of CO2
( 1,000 Liters Water Delivered )
The JUST water carton represents a 50% reduction in global warming potential compared to an average weight 100% PET plastic bottle.
The life cycle stages included and explained:
Phase 1. Material Production: Covers all processes from the extraction of raw materials through the production of materials in a form ready for conversion steps (fabrication into a carton for the PET systems and conversion into roll stock for the JUST water systems). Production of material inputs for the molded top of the JUST water carton is also included in this stage.
Phase 2. Converting: For the JUST water carton, this step includes conversion of all of the materials into roll stock ready to be sent to the filling location. For the PET carton, this step includes injection molding of the preform and subsequent stretch blow molding into a carton. It is assumed that the preform and carton are produced at the same location in this analysis.
Phase 3. Filling: For the JUST water carton, this stage includes converting the rollstock into cartons, molding the top and joining it to the carton base, filling the carton with still water, and putting the closure on the carton. For the PET carton, this step includes filling the carton with still water, and putting the cap and label on the carton.
Phase 4. Transportation: For the JUST water carton, this stage includes transport of the rollstock to the filler, and the transport of the completed carton to retail. For the PET carton, this stage covers transport of the PET resin to the converting/filling location and subsequent transport of the finished carton to retail. Transportation steps also occur throughout other life cycle stages of the containers.
Phase 5. Closure (Life Cycle): This stage includes all life cycle steps relevant to the closure (material production, converting, disposal and recycling).
Phase 6. Label (PET Carton Only, Life Cycle): This stage includes all life cycle steps relevant to the PP label for the PET carton (material production, converting, and disposal).
Phase 7. End-Of-Life Disposal: End-Of Life (EOL) disposal covers steps related to the consumer disposal of the primary body of the containers in the average U.S. municipal waste stream. Both waste-to-energy (WTE) combustion and landfilling are considered.
Phase 8. Recycling: This stage includes processes required to recover the material so it is suitable for a subsequent useful life. The processes included in this stage are dependent on the recycling allocation method applied (System expansion versus cut-off).
This JUST water LCA was conducted in accordance with the following voluntary international standards for LCAs:
ISO 14040: 2006, Environmental management – Life cycle assessment – Principles and framework
ISO 14044: 2006, Environmental management – Life cycle assessment – Requirements and guidelines
Want to understand what the ISO is: