Business Brief: The smoke hanging over the G7 summit

Good morning. The forest fires breaking out across Canada's prairie provinces aren't exactly closing in on Kananaskis, the Alberta site of this weekend's G7 Summit, but I can smell the smoke from southwestern Ontario. Below, a look at the economic and logistical challenges as Canada hosts one of the most complex security operations on the planet. In the news Defence: Prime Minister Mark Carney will unveil substantial new defence spending Monday as he prepares for the late June NATO Leaders Summit where countries including Canada are expected to commit to higher military spending, sources say. Delivery: The union representing workers…