Carbon Footprint (Cont’d from Page 1)
The carbon footprint statement was compiled and written by RISE (Research Institutes of Sweden) and the raw data and calculations were verified by ifeu (Institut für Energie- und Umweltforschung) based in Heidelberg, Germany. It is encouraging to note that the analysis shows that the cradle-to-grave fossil GHG emissions for cartons was reduced by 17 percent in 2021 com- pared to the last calculation covering the calendar year 2018 (2021: 852kgCO2e versus 2018: 1,025kg- CO2e). If the total carbon footprint is considered, including fossil GHG emissions, biogenic GHG emissions, GHG removals and direct land-use, then the reduction is increased to 24 percent (2021: 249kgCO2e versus 2018: 326kgCO2e). The analysis of the 2021 footprint is more com- plete than in previous iterations of the analysis, with additional inputs included in the modeling of the cartonboard production (in particular, inclusion of the impact of binders) and in the modeling of the carton conversion process (in particular, inclu- sion of the impact of adhesives for lamination, in- clusion of the impact of varnish, and inclusion of the impact of gravure printing ink). Together, these additional items account for nearly 12 percent of the fossil GHG emissions.
A detailed analysis of the carbon footprint reveals that: • The fossil GHG emissions across the entire life cycle are 852kgCO2e per tonne of cartons — The unit processes that together constitute the production of cartonboard accounts for 86 per- cent of the total fossil GHG footprint. Of these unit processes, the most important contributing item is emissions arising from the combustion of fossil fu- els at the pulp and paper mills. Also important are emissions arising from purchased grid electricity at
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