What goes into an LCA?
Comparison of paper and plastic shopping bags
Life cycle assessments can be used to compare the sustainability of different products. Look at the table which summarises an assessment of plastic and paper disposable shopping bags.
Which do you think will be more environmetally-friendly? Paper or plastic?
Paper or plastic?
Looking at the table, the plastic bags seem to be more sustainable. However, both paper and plastic bags use up resources and produce wastes. Looking at sustainability using the Natural Step Framework tells us that neither are sustainable in the long term.
Life Cycle Assessment appears to give clear answers but there are limitations as to how they can be interpreted.