Scientific Knowledge
Please review each article prior to use: grade-level applicability and curricular alignment might not be obvious from the headline alone.
Harvard professor with polarizing alien theories is picked to lead Trump administration UFO council
6 minute read Preview Thursday, Jul. 2, 2026Fish handling tips for fishes’ welfare and better photos
6 minute read Preview Friday, Jun. 26, 2026A large, harmless asteroid will zip past Earth this weekend
2 minute read Preview Saturday, Jun. 27, 2026St. Bernard dogs still roam the Swiss Alps as part of this ‘living museum’ and its breeding program
4 minute read Preview Saturday, Jun. 27, 2026Europe’s extreme heat would be impossible without climate change, scientists say
5 minute read Preview Sunday, Jun. 28, 2026Researchers put hail under microscope, take stock of June 9 storm
6 minute read Preview Friday, Jun. 26, 2026Growing number of Manitoba youths are addicted to vaping
11 minute read Preview Thursday, Jun. 25, 2026What to know about earthquake early warning systems
6 minute read Preview Thursday, Jun. 25, 2026The 2 earthquakes that struck Venezuela are known as a ‘doublet.’ Here’s how they happen
4 minute read Preview Tuesday, Jul. 21, 2026Get a load of this: Humans and great apes share similar giggles
3 minute read Preview Thursday, Jul. 30, 2026Grade 7 students learn about environment in Seine River cleanup
4 minute read Preview Wednesday, Jun. 24, 2026Health Canada approves weight-loss drug for sleep apnea in patients with obesity
4 minute read Preview Monday, Jun. 29, 2026When a rip current sucks you out to sea, try not to panic
4 minute read Preview Thursday, Jun. 25, 2026Depave paradise, tear up a parking lot
5 minute read Preview Wednesday, Jun. 24, 2026A Serbian town is known for raspberries that are exported around the world
3 minute read Preview Thursday, Jun. 25, 2026In a visit to Capitol, Jessie Diggins and other Olympians push for climate change solutions
6 minute read Preview Thursday, Jun. 25, 2026COVID-19 vaccine study that was blocked from CDC journal is published elsewhere
4 minute read Preview Tuesday, Jun. 23, 2026Wanted: The Teton Range’s few remaining mountain goats
6 minute read Preview Tuesday, Jun. 23, 2026How a heat dome is formed and why experts blame one for Europe’s baking temperatures
4 minute read Preview Wednesday, Jul. 15, 2026A soothing cup of herbal tea can begin in your garden
5 minute read Preview Wednesday, Jun. 24, 2026AI companies should release environmental impact, commit to clean energy, says UN chief
5 minute read Preview Wednesday, Jul. 15, 2026If life hands you a data centre, grow tomatoes
4 minute read Tuesday, Jun. 23, 2026People everywhere are protesting AI data centres, with good reason. They use a lot of water and energy, and they create a lot of noise. They create relatively few ongoing jobs after construction is complete.
Electricity used to power servers at AI centres creates heat. To keep running they must be cooled. More electricity is used to power chillers to cool the computers. In summer, chillers evaporate water and dissipate heat to the atmosphere. Lots of it. A few Olympic-size swimming pools worth, even in our cold climate.
A 100 MW (100,000 kW) data centre uses enough power to heat about 10,000 homes with electric baseboard heat or an electric furnace. Or about enough to heat 80 acres of greenhouse on the coldest days of January. To put that in perspective, the recently completed Keeyask dam produces about 695 MW of power. A 100 MW data centre uses about 14 per cent of the power produced by the Keeyask dam.
In Finland, a data centre was built under downtown Helsinki. Waste heat from the data centre is recycled to heat the buildings above it.