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At Trillium Health Partners in Mississauga, the decision to stop using the common anesthetic gas desflurane during surgeries made a big difference. The hospital reduced carbon emissions from anesthetic gases by more than 90 per cent — going from 860 tonnes of CO2 per year to just 80.

A growing number of cities have launched initiatives to reuse the wood waste from construction and demolition that now ends up in landfills. The challenge, proponents say, is to deploy new techniques for disassembling old buildings and markets for repurposing the salvaged wood.

Northeast states’ options to meet ambitious clean energy targets since the US government placed a moratorium on offshore wind projects could open the door to large-scale developments planned off Atlantic Canada, say experts.

Police say an explosive device damaged the front door of British Columbia infrastructure minister Bowinn Ma's office, and they're investigating whether it was linked to an earlier blast nearby.

Prime Minister Mark Carney says he did not speak Friday with Donald Trump before the U.S. president announced a sudden end to trade negotiations in response to Ottawa's plans to push ahead with a digital services tax at the end of the month. On his platform Truth Social, Trump wrote that he was "terminating all discussions on trade with Canada" because of the tax.

Louisiana is the latest state to redefine natural gas as green energy under a new law the Republican governor signed this week, even though it's a fossil fuel that emits planet-warming greenhouse gases.

Ottawa is considering whether to follow in the footsteps of several European nations by forging a new defence co-production deal with Ukraine for military equipment, Defence Minister David McGuinty said on Thursday.

Alberta’s finance minister is set to deliver the final bottom line number today on last year’s provincial budget.

Asia’s dependence on Middle East oil and gas — and its relatively slow shift to clean energy — make it vulnerable to disruptions in shipments through the Strait of Hormuz, a strategic weakness highlighted by the war between Israel and Iran.

A federal Crown corporation is loaning BC Ferries $1 billion to help buy four Chinese-made ships, a purchase that federal Transport Minister Chrystia Freeland recently said was dismaying and should involve no federal funds.

The town of Cochrane, Alberta, came within minutes of withdrawing from a national net-zero framework based on arguments from an AI-powered misinformation campaign uncovered by Canada's National Observer. A last-minute move by the mayor put the brakes on the decision — for now.

When you outlaw or discourage the sale of plastic bags, fewer of them end up as litter on beaches, a new study finds.

Alberta Premier Danielle Smith says the public desire in her province to quit Canada has never been higher. Smith says a recent byelection that saw a separatist candidate garner almost 18 per cent of the vote shows Albertans are deeply frustrated and angry with Ottawa.

Louisiana is the latest state to redefine natural gas as green energy under a new law the Republican governor signed this week, even though it's a fossil fuel that emits planet-warming greenhouse gases.

Passage of Bill C-5 an "assault on science and democracy" say critics.