In order to investigate the impact of global warming on
supply chain practice,participants were asked to assess to
what extent concern about climate change had forced
their companies to modify their freight transport opera-
tions over the last 3 years and how they expected it to
affect their logistics systems in the future.The answers for
the 65%of respondents belonging to companies with a
freight transport operation were rated on a five-point
Likert scale where 0=not at all and 4=large extent(Fig. 4).