A Canadian lab has run a chemical process on real spent nuclear fuel "and pulled out 90% of the long-lived danger in 24 hours, the part that forces a burial site to last 100,000 years," notes the blog Autonocio, "with the leftovers meant to fuel a reactor." The standard plan for spent nuclear fuel is to wait it out. You pull the used bundles from a reactor, sit them in a pool of water for seven to ten years while the heat and radiation come down, seal them in concrete casks, and look for somewhere deep and geologically dull to leave them for the next hundred thousand years. Canada has been hunting for that burial site since the 1980s and still doesn't have one in the ground. A company in Saint John, New Brunswick thinks most of what makes that waste dangerous never needed to go in the ground at all. Moltex Energy Canada says a chemical process it calls WATSS can strip 90% of the long-lived material out of used Canada Deuterium Uranium [CANDU] fuel in 24 hours, and that the concentrated leftovers become fuel for a reactor it wants to build on the same site. The recovery step isn't a slide in a pitch deck anymore. In 2025, World Nuclear News reported that Canadian Nuclear Laboratories ran the process on real used fuel from a commercial Canadian reactor and confirmed the 90% figure. None of it is generating power yet. What exists is a validated chemical step and a reactor design waiting in line at a regulator. The rest is a 2030s problem. "The chemistry has a lab result behind it. The reactor does not exist..." the article points out. "Moltex is aiming to have its first WATSS and SSR-W units running at Point Lepreau by the early-to-mid 2030s... Not everyone buys the pitch. Critics have argued the reprocessing creates its own stream of byproducts, that the economics are unproven, and that a single site's stockpile is finite." But Moltex "isn't alone in trying to burn nuclear waste instead of bury it," the article notes, with Switzerland and Denmark "chasing the same goal a different way." Switzerland's Transmutex drives a subcritical reactor with a particle accelerator, feeding it spent fuel alongside thorium... Denmark's Copenhagen Atomics is building a thorium molten-salt reactor that fits inside a shipping container and runs on the leftovers from conventional plants. Thanks to long-time Slashdot reader kwelch007 for sharing the article.

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Dans “The Globe and Mail”, un Montréalais expatrié à Los Angeles, raconte comment sa casquette des Expos provoque des rencontres et une complicité inattendue.

© Photo eric molina/Montrealaholic/Wikimedia Commons/CC

L’annonce de l’implantation prochaine d’un immense centre de données de Meta destiné à l’intelligence artificielle en Alberta provoque déjà la controverse au Canada. Citoyens et écologistes montent au créneau, alors que des projets similaires ont déjà été stoppés ou rejetés dans le pays.

© META/REUTERS

Meta will build its first Canadian data center in Alberta, investing $9 billion in a 1-gigawatt facility that can scale to 1.8 gigawatts to support its AI infrastructure needs. The project will rely on new generation and grid infrastructure funded by Meta, including a long-term agreement tied to a new natural gas power facility. The company says it will offset electricity use with clean and renewable energy investments. Reuters reports: Meta has doubled down on AI, pledging hundreds of billions of dollars to build large AI data centers in the U.S. The Alberta announcement represents the company's 33rd data center globally. Executives made the announcement in Calgary alongside Premier Danielle Smith and other Alberta government officials, who have spent several years courting Silicon Valley tech giants with the aim of spurring a large-scale investment in the oil-and-gas province. Alberta's technology minister, Nate Glubish, told reporters there are currently several other gigawatt-scale data center proposals in various stages of development in the province. "This is the first of its kind, the first of its size, the first of its scale, but it won't be the last," Glubish said. Meta, like other tech giants, is facing rapidly expanding power needs due to the growth of AI, and Alberta is rich in natural gas which sells at a significant discount to the U.S. benchmark. The province's cold climate also makes cooling the massive super-computers and related data center infrastructure more cost-efficient. The 20 existing small- to mid-scale data centers in Alberta already pull from the province's energy grid, which is 60% powered by natural gas. The provincial government is giving new proponents the option to build their own power sources to avoid limits on power capacity. Meta said Wednesday it will fully fund new generation and grid infrastructure for its Alberta data center, which will consume about as much electricity as 800,000 homes. Gary Demasi, Meta's vice president for data center development, said the company will offset that electricity use by investing in clean and renewable energy. He also said the data center will use a closed-loop liquid cooling system, meaning its total water use will be less than that of a typical golf course. [...] The company has partnered with Alberta-based Pembina Pipeline , which announced last week it will go ahead with its Greenlight Electricity Centre, a new natural gas-fired power-generation facility in Sturgeon County which will be in service in late 2030 and with which Meta has a long-term tolling agreement. Until that project is operational and for the next decade, Alberta-based power producer Capital Power will provide 250 megawatts of electricity for the site using its existing natural gas-fired fleet. The project will require approximately 150 million cubic feet per day of natural gas, according to Pembina, helping to create demand for Western Canadian natural gas producers.

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