In a news release, the St. Lawrence Seaway Management Corporation says the total tonnage of freight shipped through the waterway increased by four percent. That's 300,000 tons higher than expected last year.
Cook also educated listeners - and producers...
Officials give partial credit to a late-season surge in grain shipments.
The corporation says U.S. grain was down sharply because of last summer's drought. But that loss was offset by the strong movement of Canadian grain.
Other gains: Iron ore on its way to China, and low-sulphur coal to Europe. The Seaway closed for the season on Dec. 29, 2012.