Carbon footprint glas- en PET-containers in Zuid-Afrika
Researchers at the University of the Witwatersrand in South Africa analysed the product carbon footprint of the packaging process for 300 ml glass and 500 ml PET containers for a South African soft drink manufacturer.
They found that the PET packaging process draws 100% of its cumulative energy demand from purchased electricity (generated by burning coal); therefore, the PET containers have 4.5 times less global warming potential per hectolitre than the glass containers, which have 71% of their emissions resulting directly from coal-fired boilers on site. An article about the research was presented at the 27th annual conference of the Southern African Institute for Industrial Engineering.
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