National Business

OTTAWA — The economic cost of greenhouse gas emissions is nearly five times higher than previously thought, Environment Minister Steven Guilbeault said Wednesday.

TORONTO — Some of the most active companies traded Wednesday on the Toronto Stock Exchange: Toronto Stock Exchange (20,680.83, down 3.85): B2Gold Corp. (TSX:BTO). Basic Materials. Down 10 cents, or 1.8 per cent, to $5.46 on 13.6 million shares.

WASHINGTON (AP) — The Supreme Court is leaving women's access to a widely used abortion pill untouched until at least Friday, while the justices consider whether to allow restrictions on the drug mifepristone to take effect.

TORONTO — Canada's main stock index edged lower on Wednesday, weighed down by losses in the energy and base metal stocks, while U.S. stock markets were mixed.

CALGARY — Imperial Oil Ltd. said its cleanup efforts following recent high-profile wastewater releases from its Kearl oilsands site will be complete next month.

CRA says strike will mean certain services will be delayed or unavailable

TORONTO — If the current strike by thousands of public sector workers is successful, it could have a domino effect for unionized workers in other industries, labour experts said. “Strikes in the federal public service are extremely rare.

Metro Inc. is launching a new loyalty program that will give the grocery and drugstore retailer insight into customer behaviour and shopping patterns.

OTTAWA — Construction of new homes picked up in several of Canada's major cities last year, said the Canada Mortgage and Housing Corp. (CMHC), but the agency foresees a slowdown as interest rates weigh on building costs.

TORONTO — Allowing tech companies to apply brazen labels to the social media accounts of credible publications can harm the reputations of news outlets and mislead the public, academics say.