Nearly half of China's major cities are sinking, researchers say
Nearly half of China's major cities are suffering 'moderate to severe' levels of subsidence, putting millions at risk of flooding especially as sea levels rise.
Parts of seven provinces and one territory were subject to air quality alerts Tuesday as smoke from nearly 900 active wildfires caused hazy conditions and health risks.
Environment Canada issued the weather advisories in the morning for major cities including Edmonton, Winnipeg, Toronto and Ottawa, as well of all of New Brunswick. A stronger smog warning covered much of southern Quebec, including Montreal and Quebec City. By 8 p.m. EDT, the advisories had been downgraded to weather statements about the possibility of “high levels of air pollution due to smoke from active forest fires,” and Ottawa no longer had a statement or advisory in place.
The agency's alerts covered much of B.C.'s interior and northeast, western and northern Alberta, eastern and northern Saskatchewan, Ontario's far northwest, all of southern Ontario, most of southern Quebec, all of New Brunswick, and Thebacha Region in the Northwest Territories.
However, the worst air quality in the country at that time was said to be in Winnipeg, based on the federal air quality health index (AQHI). The city’s poor air quality held up through the evening.
Manitoba's largest city was said to have an AQHI value above 10 Tuesday morning, representing a very high risk to human health. The air quality improved to a level of eight, or high risk, by Tuesday evening.
High-risk air quality levels were also reported Tuesday morning in Edmonton, Regina, Montreal and Quebec City. By evening, only Regina and Quebec City had air quality levels improve to moderate and low risk, respectively.
In all of these cities, the air quality was expected to start improving later Tuesday and through Wednesday. However, there was no sign of any impending rain, which would make a big difference in both reducing the smoke and combating nearly 900 wildfires that have caused the haze.
Nearly 300 wildfires were burning in British Columbia as of Tuesday evening, including one that flared up late Monday, resulting in an evacuation order from the Osoyoos Indian Band. There were 68 wildfires burning in Alberta as of Monday, 171 active in Saskatchewan as of Tuesday, 130 in Manitoba as of Sunday, and 165 in Ontario as of Tuesday evening. Yukon has added eight new fires since Monday with dozens of active fires ongoing Tuesday evening, and the Northwest Territories is battling 37 active fires as of Tuesday evening.
Four fires in Ontario are of particular concern for firefighters, including a 16,000-hectare blaze that is seven kilometres from the evacuated Poplar Hill First Nation.
As is the case with other forms of smoke, smoke from wildfires can be hazardous to human health. Symptoms can include increased coughing, headaches and shortness of breath.
There is also emerging evidence that even a little bit of exposure to wildfire smoke may worsen eczema and other skin conditions, and that its fine particular matter is more dangerous to our health than car exhaust.
Environment Canada warns that children, seniors and those with cardiovascular issues are at increased risk of smoke-related symptoms, and that anyone exposed to wildfire smoke should limit outdoor activity and hydrate often.
Nearly half of China's major cities are suffering 'moderate to severe' levels of subsidence, putting millions at risk of flooding especially as sea levels rise.
American millionaire Jonathan Lehrer, one of two men charged in the killings of a Canadian couple in Dominica, has been denied bail.
Prince Harry, the son of King Charles III and fifth in line to the British throne, has formally confirmed he is now a U.S. resident.
The judge presiding over the trial of a man accused of fatally running over a Toronto police officer is telling jurors the possible verdicts they may reach based on the evidence in the case.
A male columnist has apologized for a cringeworthy moment during former University of Iowa superstar and college basketball's highest scorer Caitlin Clark's first news conference as an Indiana Fever player.
Health Canada will change its longstanding policy restricting gay and bisexual men from donating to sperm banks in Canada, CTV News has learned. The federal health agency has adopted a revised directive removing the ban on gay, bisexual and other men who have sex with men, effective May 8.
Colin Jost, who co-anchors Saturday Night Live's 'Weekend Update,' revealed who he thinks is one of the best hosts on the show.
Sophie Kinsella, the best-selling author behind the 'Shopaholic' book series, has revealed that she is receiving treatment for brain cancer.
Cabinet minister Dominic LeBlanc says he plans to run in the next election as a candidate under Prime Minister Justin Trudeau's leadership, amid questions about his rumoured interest in succeeding his longtime friend for the top job.
Kevin the cat has been reunited with his family after enduring a harrowing three-day ordeal while lost at Toronto Pearson International Airport earlier this week.
Molly Knight, a grade four student in Nova Scotia, noticed her school library did not have many books on female athletes, so she started her own book drive in hopes of changing that.
Almost 7,000 bars of pure gold were stolen from Pearson International Airport exactly one year ago during an elaborate heist, but so far only a tiny fraction of that stolen loot has been found.
When Les Robertson was walking home from the gym in North Vancouver's Lower Lonsdale neighbourhood three weeks ago, he did a double take. Standing near a burrow it had dug in a vacant lot near East 1st Street and St. Georges Avenue was a yellow-bellied marmot.
A moulting seal who was relocated after drawing daily crowds of onlookers in Greater Victoria has made a surprise return, after what officials described as an 'astonishing' six-day journey.
Just steps from Parliament Hill is a barber shop that for the last 100 years has catered to everyone from prime ministers to tourists.
A high score on a Foo Fighters pinball machine has Edmonton player Dave Formenti on a high.
A compound used to treat sour gas that's been linked to fertility issues in cattle has been found throughout groundwater in the Prairies, according to a new study.
While many people choose to keep their medical appointments private, four longtime friends decided to undergo vasectomies as a group in B.C.'s Lower Mainland.