Two killed after collision with truck on Hwy. 417 near Limoges, Ont.
Ontario Provincial Police say two people were killed after a car and a transport truck collided in the westbound lanes of Highway 417 near Limoges, Ont. on Tuesday afternoon.
A new study suggests that Antarctica's ice shelves may be melting faster than previously believed, which is causing sea levels to rise at a more rapid pace and accelerating the dangers of climate change.
The study, published in the journal Science Advances on Aug. 12, was conducted by Caltech and Jet Propulsion Laboratory researchers. It's based on a model that accounts for a narrow ocean current, which runs along the Antarctic coast.
The current's flow patterns show how freshwater, which has melted from the ice shelves, can trap dense warm ocean water at the base of the ice, intensifying heat and, therefore, causing more ice to melt.
"If this mechanism that we've been studying is active in the real world, it may mean that ice shelf melt rates are 20 to 40 percent higher than the predictions in global climate models, which typically cannot simulate these strong currents near the Antarctic coast," Andy Thompson, one of the researchers and professor of environmental science and engineering, said in a Caltech news release.
According to the release, "ice shelves are outcroppings of the Antarctic ice sheet, found where the ice juts out from land and floats on top of the ocean."
Several hundred metres thick, the shelves offer a protective buffer for the mainland ice, blocking the whole ice sheet from flowing into the ocean.
"A warming atmosphere and warming oceans caused by climate change are increasing the speed at which these ice shelves are melting," says the news release, which is "threatening their ability to hold back the flow of the ice sheet."
The study was led by senior research scientist Mar Flexas, who said their climate model assessed a current which is often overlooked by other researchers: the Antarctic Coastal Current, which runs counter-clockwise around the entire Antarctic continent, and is often considered too small to offer relevant data.
"Large global climate models don't include this coastal current because it's very narrow—only about 20 kilometres wide, while most climate models only capture currents that are 100 kilometres across or larger," Flexas said in the release. "So, there is a potential for those models to not represent future melt rates very accurately."
Increased meltwater can escalate melting at West Antarctic ice shelves thousands of kilometres away from the peninsula, the research suggests.
The release says that "this remote warming mechanism may be part of the reason that the loss of volume from West Antarctic ice shelves has accelerated in recent decades."
"There are aspects of the climate system that we are still discovering," Thompson said in the release. "As we've made progress in our ability to model interactions between the ocean, ice shelves, and atmosphere, we're able to make more accurate predictions with better constraints on uncertainty. We may need to revisit some of the predictions of sea level rise in the next decades or century—that's work that we'll do going forward."
Ontario Provincial Police say two people were killed after a car and a transport truck collided in the westbound lanes of Highway 417 near Limoges, Ont. on Tuesday afternoon.
High waters flooded neighborhoods around Houston on Saturday following heavy rains that have already resulted in crews rescuing hundreds of people from homes, rooftops and roads engulfed in murky water.
As Wegovy becomes available to Canadians starting Monday, a medical expert is cautioning patients wanting to use the drug to lose weight that no medication is a ''magic bullet,' and the new medication is meant particularly for people who meet certain criteria related to obesity and weight.
Electric scooters (e-scooters) have been gaining popularity in the capital and this season comes with some changes and updates.
Crucial witnesses took the stand in the second week of testimony in Donald Trump's hush money trial, including a California lawyer who negotiated deals at the center of the case and a longtime adviser to the former president.
A Chinese truck driver was praised in local media Saturday for parking his vehicle across a highway and preventing more cars from tumbling down a slope after a section of the road in the country's mountainous south collapsed and killed at least 48 people.
A 60-year-old man and a 55-year-old woman killed in a wrong-way crash on Highway 401 earlier this week have been identified by the Consulate General of India in Toronto.
York Regional Police say they are continuing to search for a suspect in an auto theft investigation who was captured on video running over a police officer in Toronto last month.
Montreal's Felix Auger-Aliassime has advanced to his first ATP Masters final, and he hasn't had to play all that much tennis to do it.
Alberta Ballet's double-bill production of 'Der Wolf' and 'The Rite of Spring' marks not only its final show of the season, but the last production for twin sisters Alexandra and Jennifer Gibson.
A British Columbia mayor has been censured by city council – stripping him of his travel and lobbying budgets and removing him from city committees – for allegedly distributing a book that questions the history of Indigenous residential schools in Canada.
Three men in Quebec from the same family have fathered more than 600 children.
A group of SaskPower workers recently received special recognition at the legislature – for their efforts in repairing one of Saskatchewan's largest power plants after it was knocked offline for months following a serious flood last summer.
A police officer on Montreal's South Shore anonymously donated a kidney that wound up drastically changing the life of a schoolteacher living on dialysis.
Since 1932, Montreal's Henri Henri has been filled to the brim with every possible kind of hat, from newsboy caps to feathered fedoras.
Police in Oak Bay, B.C., had to close a stretch of road Sunday to help an elephant seal named Emerson get safely back into the water.
Out of more than 9,000 entries from over 2,000 breweries in 50 countries, a handful of B.C. brews landed on the podium at the World Beer Cup this week.
Raneem, 10, lives with a neurological condition and liver disease and needs Cholbam, a medication, for a longer and healthier life.