CF has been put into practice for a canned mussel product
using PAS 2050. It led to a final result of 4.35 kg CO2e for one
triple pack of round cans of canned mussels. However, an
important characteristic of carbon footprints is the fact that
they constitute a representative figure where natural
variability is implicit. Additionally, there are also some
methodological aspects that are source of technical uncertainty
and question the potential of using a number to truly
represent the contribution of a product to the global GHG
emissions.