Any reduction in transportation access and service may mean having to source from farther distances with more demurrage costs. Longer distances mean higher transportation costs. So intuitively, without knowing exactly the situation and where it will affect regionally the most, that could drive the cost of acquisition up, because transportation is a key component of that.
Evidence of meeting #36 for Agriculture and Agri-Food in the 40th Parliament, 2nd Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was security.
A recording is available from Parliament.