Globe Climate: Keepers of the coast

It’s been six years since a Canadian premier led a trade mission to China. Much like Alberta Premier Danielle Smith’s forays into Washington, D.C., to shore up oil exports there, Saskatchewan Premier Scott Moe is heading to China this weekend. It’s expected he’ll wave the province’s flag in support of improved market access for Saskatchewan’s bumper crop of canola. It’s a tricky situation for the premier to navigate. Trade friction with and between its largest markets — China and the U.S. — has put Canadian canola in the crosshairs. To be clear, Moe isn’t trying to supplant Ottawa’s...