Scientific Knowledge

Please review each article prior to use: grade-level applicability and curricular alignment might not be obvious from the headline alone.

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As permafrost thaws, some headwaters in Canada’s North turn orange and toxic: study

Jordan Omstead, The Canadian Press 7 minute read Preview
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As permafrost thaws, some headwaters in Canada’s North turn orange and toxic: study

Jordan Omstead, The Canadian Press 7 minute read Updated: Yesterday at 8:41 PM CDT

Ancient bedrock exposed by disappearing permafrost is releasing toxic metals into Canada's northern rivers, a new study says, with once-pristine subarctic streams now comparable in some cases to highly acidic, contaminated mining sites.

The findings out of Yukon point to an "unfolding environmental disaster," one co-author said, and adds to alarm over the rapid climate-fuelled changes in the North.

"We don't know the end point, but there's nothing about this that gives me any feeling of like, 'oh, we're going to be OK'," said co-author Sean Carey, a professor at McMaster University.

"I'm not even a gloomy person. This looks pretty gloomy."

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Updated: Yesterday at 8:41 PM CDT
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A mop, a broom and a calmer mind. Why some find mental health benefits in everyday tasks

Katherine Roth, The Associated Press 4 minute read Preview
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A mop, a broom and a calmer mind. Why some find mental health benefits in everyday tasks

Katherine Roth, The Associated Press 4 minute read Thursday, Jun. 11, 2026

NEW YORK (AP) — It's spring cleaning season, and for some people that can mean drudgery or anxiety.

But experts from Zen monks to psychologists say there are mental health benefits to be found in such manual chores as sweeping, mopping and clearing away clutter. These tasks can encourage mindfulness or permit the mind to wander, all while producing a concrete sense of achievement in accomplishing the basic tasks of daily life.

As one famous Zen saying goes:

“Before enlightenment, chop wood, carry water. After enlightenment, chop wood, carry water.”

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Thursday, Jun. 11, 2026
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The dangers of gambling on nuclear power

Anne Lindsey 5 minute read Friday, May. 15, 2026

Dismissing climate science, setting Canada apart from most nations and planting us firmly in the United States’ camp, the Carney government is betting the farm on a “nuclear renaissance.”

There have been numerous indications this was coming. But Energy Minister Tim Hodgson’s April 29 statement to the Canadian Nuclear Association, following immediately on the launch of the “Canada Strong Fund” left no doubt that our investment banker prime minister is determined to pursue his nuclear energy superpower dreams.

As the UN Climate Envoy, Mark Carney famously said there is “no path to net zero without nuclear.” This has been a mantra of successive Liberal governments even as Canada’s last nuclear build was in the 1980s, and nuclear’s share of global electricity production has been steadily declining. It’s also been the rallying cry of nuclear advocates spending big to persuade anxious populations experiencing floods, droughts and wildfires that nuclear power will solve our climate disaster in the making. That claim is false.

Eight years ago, the Liberals rolled out their “SMR roadmap,” predicting the first (slightly) smaller new reactors would be operational in 2026. It isn’t happening. A new report by M.V. Ramana and Susan O’Donnell — Assessing Small Modular Nuclear Reactors in Canada — details the $4.5 billion spent by Canadian governments on SMRs with zero kilowatts of electricity generated to date. Most of that money went to the potential first SMR in Canada, the BWRX 300, an American design by GE Hitachi that uses enriched uranium fuel, not available in Canada.

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Health advice is all over social media. Here’s how to vet claims

Devi Shastri, The Associated Press 5 minute read Preview
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Health advice is all over social media. Here’s how to vet claims

Devi Shastri, The Associated Press 5 minute read Wednesday, Jun. 3, 2026

Health and wellness advice is available in abundance on social media — from trendy to informative to straight-up disinformation — and you're far from alone in seeing it.

A new survey by the Pew Research Center finds that about 4 in 10 U.S. adults — and around half of those under 50 — get health information from social media or podcasts.

Researchers also looked at the social media profiles of 6,828 health and wellness influencers with at least 100,000 followers. Only about 4 in 10 list a background as a health professional. About one-third called themselves coaches, about 3 in 10 described themselves as entrepreneurs and about 1 in 10 cited their own life experience, like being a parent.

Despite the wide range of expertise, about half of people who get health and wellness information from influencers said the influencers help them better understand their own health, while about one-third said it hasn't made much difference. About 1 in 10 said it made them more confused.

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Wednesday, Jun. 3, 2026
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Governments blasted for inaction as HIV rates rise

Scott Billeck 5 minute read Preview
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Governments blasted for inaction as HIV rates rise

Scott Billeck 5 minute read Friday, May. 8, 2026

An HIV/AIDS advocate who has spent the past 35 years raising awareness about the disease is calling for a national inquiry into what he calls a lack of proactive action by provincial and federal governments to prevent infections.

Albert McLeod, a two-spirit elder from Nisichawayasihk Cree Nation, says HIV pre-exposure prophylaxis — commonly known as PrEP — has been approved by Health Canada since 2016. Despite that, infection rates have continued to climb.

“It’s just this sort of very conservative attitude to our health,” McLeod said Friday, challenging anyone to find a poster in Winnipeg promoting HIV awareness or PrEP on street corners or at bus stops.

“And now it’s suddenly an emergency in 2026, when we’ve had 10 years to be proactive and let people know about the availability of this medication? Instead, we have people who are HIV positive who could be negative.”

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Friday, May. 8, 2026
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Parade of ghostly icebergs brings joy and wonder to Newfoundland and Labrador

Sarah Smellie, The Canadian Press 4 minute read Preview
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Parade of ghostly icebergs brings joy and wonder to Newfoundland and Labrador

Sarah Smellie, The Canadian Press 4 minute read Saturday, May. 30, 2026

ST. JOHN'S -

At the top of Signal Hill in St. John's, N.L., on Tuesday afternoon, a steady stream of people walked around a rocky cliff and gasped.

Some cheered, some took out their phones to capture the moment — a rush of awe as an iceberg floated in the ocean below, cleaved off from a Greenland glacier and delivered by the Labrador current on a cloudless spring day.

It's a banner year for icebergs in Newfoundland and Labrador, where tourists and residents alike are gathering on shores across the province to welcome the ancient visitors.

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Saturday, May. 30, 2026
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Bear hunting and conservation questions

Jessica Scott-Reid 4 minute read Friday, May. 8, 2026

You don’t have to be an animal rights activist to oppose black bear hunting in Manitoba. You also don’t have to trade in your ethics in order to understand biology. Most animal and nature-loving Canadians can do it all: understand science and care about animal suffering. Well, unless your paycheque requires otherwise.

Such is the case for the author of a recent article for the Free Press (Why claims of sentience can’t guide black bear policy, Think Tank, April 16), Mark Hall, who conservation-washes the killing of black bears in our province. The B.C.-based hunting advocate also conveniently failed to mention his vested interest in the issue, including that the organization he works for is funded by companies in the trophy hunting business. He also failed to follow the actual science.

The fact is, framing Manitoba’s spring black bear hunt as a conservation measure grounded in biology just doesn’t hold up. Especially since it is also marketed by local companies as trophy hunting. “During your bear hunt you will be placed over an active bear bait site (and) with a little patience and some determination you will be able to harvest a trophy of a lifetime,” states one company’s website.

Lesley Fox, executive director of Canadian wildlife protection charity The Fur Bearers, says “heralding the spring bear hunt as conservation is a public relations tactic that supports special interests, not wildlife.”

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Conservation shouldn’t come at the cost of access

Carly Deacon 5 minute read Preview
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Conservation shouldn’t come at the cost of access

Carly Deacon 5 minute read Tuesday, May. 5, 2026

The Seal River Watershed in northern Manitoba is one of the last great intact ecosystems in North America.

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Tuesday, May. 5, 2026
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Delaying access to social media

Lianna McDonald 4 minute read Tuesday, May. 5, 2026

An 11-year-old boy is threatened with the distribution of nude images unless he pays an international extortionist who found him on TikTok. A 12-year-old girl is relentlessly pressured by someone she believed was a friend to expose herself on camera. A 14-year-old boy is unravelling — failing classes, withdrawing from life — because his friend is being exploited on Roblox and he feels powerless to help.

These are not outliers. In 2025 alone, Cybertip.ca processed more than 28,000 reports. These are just three.

Canada’s children are not stumbling into harm by accident. They are being systematically exposed to it — on platforms engineered to capture their attention, monetize their vulnerability and retain their engagement at all costs. The scale and severity of harm now demand more than incremental reform. They demand intervention.

For over 25 years, the Canadian Centre for Child Protection has documented a steep and accelerating rise in online harms against children. This trajectory is not coincidental. It reflects a digital environment that is fundamentally misaligned with the developmental realities of childhood.

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A suspected outbreak of the rare hantavirus on a cruise ship in the Atlantic kills 3 people

Gerald Imray, The Associated Press 4 minute read Preview
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A suspected outbreak of the rare hantavirus on a cruise ship in the Atlantic kills 3 people

Gerald Imray, The Associated Press 4 minute read Monday, May. 25, 2026

CAPE TOWN, South Africa (AP) — A suspected outbreak of the rare hantavirus infection on a cruise ship in the Atlantic Ocean killed three people, including an elderly married couple, and sickened at least three others, the World Health Organization and South Africa's Department of Health said Sunday.

In a statement to The Associated Press, WHO said an investigation was underway but that at least one case of hantavirus had been confirmed. One of the patients was in intensive care in a South African hospital, the U.N. health agency said, and it was working with authorities to evacuate two others with symptoms from the ship.

The Dutch company that operates the cruise said the ship was now sitting off the coast of Cape Verde, an island nation off Africa's west coast, and local authorities were assisting but had not allowed anyone to disembark. It said the two sick people onboard requiring urgent medical care were crew members.

Hantavirus infections are spread mainly by rodents

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Monday, May. 25, 2026
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Solar ranch in Tennessee aims to prove grazing cattle under the panels is a farmland win-win

Tammy Webber And Joshua A. Bickel, The Associated Press 5 minute read Preview
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Solar ranch in Tennessee aims to prove grazing cattle under the panels is a farmland win-win

Tammy Webber And Joshua A. Bickel, The Associated Press 5 minute read Friday, May. 22, 2026

CHRISTIANA, Tenn. (AP) — From a distance, the small solar farm in central Tennessee looks like others that now dot rural America, with row upon row of black panels absorbing the sun's rays to generate electricity.

But beneath these panels is lush pasture instead of gravel, enjoyed by a small herd of cattle that spends its days munching grass and resting in the shade.

Silicon Ranch, which owns the 40-acre farm in Christiana, outside of Nashville, believes cattle-grazing is the next frontier in so-called agrivoltaics, which mostly has involved growing crops or grazing sheep beneath the panels.

The solar company debuted the project this week and will spend the next year working to demonstrate to farmers that much larger cattle also can thrive at solar sites. If successful, advocates say, that could jump-start new projects to meet the soaring electricity demand driven by rapidly expanding data centers — without contributing climate-warming carbon emissions — and help cattle producers hold onto their land and livelihoods.

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Friday, May. 22, 2026
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St. Vital Park duck pond to get new design before $3-M rehabilitation in 2027

Joyanne Pursaga 3 minute read Preview
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St. Vital Park duck pond to get new design before $3-M rehabilitation in 2027

Joyanne Pursaga 3 minute read Thursday, Apr. 23, 2026

A new design is set to spruce up the duck pond at St. Vital Park, making it deeper, more naturalized and less prone to algae.

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Thursday, Apr. 23, 2026
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Family donates 636 acres of peatlands near Elma to nature conservancy

Tyler Searle 3 minute read Preview
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Family donates 636 acres of peatlands near Elma to nature conservancy

Tyler Searle 3 minute read Thursday, Apr. 23, 2026

A Manitoba family is doing their part to support the ecosystem by making a deal with the Nature Conservancy of Canada to protect 636 acres of peatlands in perpetuity.

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Thursday, Apr. 23, 2026
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Nurse practitioners fill void as menopause clinic to open in 2027

Carol Sanders 5 minute read Preview
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Nurse practitioners fill void as menopause clinic to open in 2027

Carol Sanders 5 minute read Thursday, Apr. 23, 2026

Some Manitoba women are paying close to $400 to access medically necessary menopause treatment from nurse practitioners who aren’t funded by the province.

“It’s a needed service that has plenty of gaps to access,” said Ashley Carruthers, chief executive officer of the Nurse Practitioners Association of Manitoba.

Premier Wab Kinew acknowledged the need at a news conference Monday to announce a $5.2-million plan to revive the menopause clinic by fall of 2027.

For now, many women must wait for access to treatment or pay a nurse practitioner.

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Thursday, Apr. 23, 2026
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What to do with inconvenient wildlife

Scott Forbes 5 minute read Preview
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What to do with inconvenient wildlife

Scott Forbes 5 minute read Tuesday, Apr. 21, 2026

Their flocks darkened the skies, over a mile wide and hundreds of miles long. It would take hours or even days for them to pass over a fixed spot. They were a common Manitoba resident, nesting as far north as York Factory. In the 1860s, one hunter trapped 80 dozen in a net near St. Andrews.

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Tuesday, Apr. 21, 2026
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Former chief psychiatrist legally challenges Manitoba’s detox detention laws

Dan Lett 4 minute read Preview
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Former chief psychiatrist legally challenges Manitoba’s detox detention laws

Dan Lett 4 minute read Sunday, Apr. 19, 2026

Manitoba’s former chief psychiatrist is challenging the constitutionality of a controversial law allowing the province to incarcerate intoxicated people for up to 72 hours, claiming that it will harm those suffering from mental illness or disabilities.

Dr. Jim Simm, an outspoken critic of the Protective Detention and Care of Intoxicated Persons Act, said in an exclusive interview on Sunday that he is seeking leave from the Court of King’s Bench to challenge the law violates provisions of the Charter of Rights and Freedoms.

“We’re talking about human beings who are suffering,” Simm said. “They may be acting badly but to be putting them in solitary confinement — it’s just wrong.”

As it stands now, the legislation allows someone who appears intoxicated to be held for 24 hours at a “detention location,” and then held for up to 72 additional hours at a “preventative care centre.”

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Sunday, Apr. 19, 2026
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Former minister Catherine McKenna blasts the heads of Canadian oil companies

Stéphane Blais, The Canadian Press 5 minute read Preview
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Former minister Catherine McKenna blasts the heads of Canadian oil companies

Stéphane Blais, The Canadian Press 5 minute read Monday, May. 11, 2026

MONTRÉAL - Former environment minister Catherine McKenna says the leaders of Canada's oil industry are figures close to American President Donald Trump who are "taking us for fools" and putting both the economy and environment at risk.

Canada's official greenhouse gas inventory was published last week. It showed that in 2024, oil and gas production was the only sector in the country to have increased its greenhouse gas emissions.

"In Canada, we expect, Canadians expect everyone to step up and do their parts. But instead, we have oil and gas, which is largely foreign-owned, largely U.S.-owned, who aren't doing their part. All they're doing is increasing our emissions and demanding subsidies," McKenna said in an interview while at Montreal's climate summit last week.

She adds that oil companies are "demanding that Canadian taxpayers pay the bill for cleaning up the pollution they cause and building pipelines they won’t risk their own money on."

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Monday, May. 11, 2026
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B.C. ‘chemical fingerprint’ scheme to track illicit drugs is likened to DNA tests

Marissa Birnie, The Canadian Press 4 minute read Preview
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B.C. ‘chemical fingerprint’ scheme to track illicit drugs is likened to DNA tests

Marissa Birnie, The Canadian Press 4 minute read Saturday, May. 9, 2026

VANCOUVER - Tucked in the basement of the chemistry building at the University of British Columbia, an arm-sized robot carries out the repetitive task of collecting and weighing colourful vials as machinery whirrs in the background.

It's part of a unique blend of robotics, chemistry and artificial intelligence aimed at helping police and health officials trace the path of batches of illicit drugs.

Police hope the "chemical fingerprinting" program is a game-changer in B.C.'s battle against toxic illicit drugs, with one senior officer likening it to DNA testing.

The provincially funded program will use technology developed at UBC by Aidos Innovations that looks at the chemical makeup of drugs and calculates their method of production, which police say could help them learn how drugs move over time.

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Saturday, May. 9, 2026
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Why claims of sentience can’t guide black bear policy

Mark Hall 5 minute read Preview
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Why claims of sentience can’t guide black bear policy

Mark Hall 5 minute read Thursday, Apr. 16, 2026

The modern debate over sustainable-use bear hunting often hinges on a few claims including bears are sentient, therefore humans have no moral right to hunt them.

It’s a powerful emotional argument, but it collapses under scientific scrutiny and ecological reality. Sentience is real. Bears and other animals do feel.

But the leap from “animals feel” to “humans must never hunt” is not supported by biology, ethics or conservation science. If we want wildlife policy that protects species and ecosystems, we need to separate what sentience is from what animal rights activists want it to mean.

In scientific terms, sentience refers to the capacity to feel or perceive, not the ability to make moral judgments.

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Thursday, Apr. 16, 2026
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EPA may ease regulation of chemical plastic recycling, and environmentalists worry

Jennifer Mcdermott, The Associated Press 7 minute read Preview
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EPA may ease regulation of chemical plastic recycling, and environmentalists worry

Jennifer Mcdermott, The Associated Press 7 minute read Saturday, May. 9, 2026

The Environmental Protection Agency is reconsidering whether facilities that recycle plastic chemically should be held to the same strict air pollution standards as incinerators.

The possible change is alarming environmental advocates who say it would lead to more dangerous pollution spewing into communities, with fewer or no checks at the federal level. The plastics industry disputes that, saying it would clear up confusion while still controlling emissions.

The world is pumping millions of tons of plastic pollution into the environment every year. While dozens of countries and many environmental groups have urged caps on production, industry and several big oil-producing countries have resisted, arguing instead for improvements in reuse and recycling.

Chemical recycling uses heat or chemicals to break down plastics. The main method, a process known as pyrolysis, has long been regulated as incineration by the Clean Air Act. The EPA limits emissions from incinerators of nine air pollutants, including toxic particulates, heavy metals and dioxins.

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Saturday, May. 9, 2026
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Crop-enhancement firm eyes potato prosperity

Aaron Epp 5 minute read Preview
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Crop-enhancement firm eyes potato prosperity

Aaron Epp 5 minute read Tuesday, Apr. 14, 2026

Of all the research labs in all the cities in all the world, Kinneret Shefer walks into St. Boniface Hospital’s.

The researcher and entrepreneur is the co-founder of GeneNeer Ltd., an agricultural biotechnology company from Israel. Earlier this year, the company established its North American operations at the Albrechtsen Research Centre in the central Winnipeg hospital.

“We moved to Canada because our technology developed, we are moving to implementation and we have some business agreements in negotiation,” said Shefer, who holds a PhD in genetic counselling from the Hebrew University of Jerusalem.

GeneNeer launched its Canadian operations in January. The company converted laboratory facilities at the research centre and had them operating within two weeks, allowing research activities to begin almost immediately.

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Tuesday, Apr. 14, 2026
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The need for regulation in a digital age

Andrew Lodge 5 minute read Monday, Apr. 13, 2026

Mark Zuckerberg, CEO of Meta and co-founder of Facebook, has been under increased scrutiny in past months after being forced to testify in a Los Angeles courtroom over allegations that Meta-owned Instagram is designed to be addictive, especially when it comes to kids.

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Manitoba students’ science projects aimed at eye health, wildfire prevention take top marks

Chris Kitching 5 minute read Preview
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Manitoba students’ science projects aimed at eye health, wildfire prevention take top marks

Chris Kitching 5 minute read Sunday, Apr. 12, 2026

More than 350 students in grades 4 to 12 took part in MSSS, the province’s largest annual science event, at the University of Manitoba.

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Sunday, Apr. 12, 2026
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Few food innovations as polarizing as genetic modification

Laura Rance 4 minute read Saturday, Apr. 11, 2026

Most of us have been eating foods derived from genetically modified crops for a generation or so, and so far, none of the ills attributed to modern food systems have been traced back to their use.

Except, perhaps our propensity towards overeating.

Since their introduction in the mid-1990s, genetically modified crops have taken over nearly half of the global area sown to soybeans, canola and corn.

The foods from these varieties, which are most often genetically modified to allow farmers to use herbicides that kill weeds but not the crop, are the same as traditional varieties in every measurable way.