From the article:

Canadian-grown wheat, canola and peas have some of the lowest carbon footprints in the world—so low that, in some cases, they could be shipped to Europe 17 times before matching the emissions of the same crops grown there.

The study by UBC Okanagan, published in Nature Food, compared the carbon footprints of these crops from Canada, France, Germany, Australia and the United States using the ISO 14067 standard.

...

This is largely thanks to widespread low and no-till farming practices and the climate of Western Canada.

"The idea that 'local is always lower-carbon' doesn't hold true," says Bamber, the paper's lead author. "In fact, for many food products, transportation only accounts for a small part of the emissions.