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MONTREAL — The head of the Air Canada pilots union says she'll step down if members opt not to approve a tentative deal with the airline, raising the stakes as aviators mull whether to accept hefty salary gains or drive an even harder bargain.

TORONTO — Five things to watch for in the Canadian business world in the coming week:

CALGARY — Nick Kolomyja reckons axe throwing may have saved his life.

OTTAWA — A $2.14-billion federal loan for an Ottawa-based satellite operator has Canadian politicians arguing about whether American billionaire Elon Musk poses a national security risk.

EDMONTON — Calgary Mayor Jyoti Gondek is urging the Alberta government to salvage pieces of the massive discontinued Green Line transit project, and the province says it's open to working together.

WINNIPEG — The Manitoba government has boosted plans for renewable energy with an announcement it will work with First Nations to develop wind power.

CALGARY — Lawn sprinklers could make a comeback in Calgary on Sunday if all goes well with the restart of a troubled water pipe.

OTTAWA — The NDP is asking the Competition Bureau to investigate whether Canadian corporate landlords are using the same AI software that sparked an antitrust lawsuit in the United States.

TORONTO — Experts say rising team valuations and the desire to forge a legacy are likely at the heart of what motivated Rogers Communications Inc. executive chair Edward Rogers to bolster the company's portfolio of Toronto professional sports teams.