Cargo volumes at Canada's largest port fell by three per cent last year as the global economy began to show signs of a slowdown. Though grain and fertilizer exports surged in the second half of 2022, the gains were not enough to offset a sputtering start to the year caused by a weak 2021 harvest and lingering supply chain problems, the Vancouver Fraser Port Authority said Monday. After more than a year of rising container traffic, imports also fell by four per cent amid softer consumer demand an