Canadian Prime Minister Justin Trudeau has offered condolences to the dozens of people who have died in a record-setting heatwave.
"Our thoughts are with people who have lost loved ones" to the heat, he said, calling the recent weather a reminder of the need to address climate change.
Abnormally high temperatures have been recorded across North America.
Mr Trudeau's comments come after Canada saw a new record - 49.6C (121.3F) - for the third day in a row.
At least 486 sudden deaths were reported over five days during the heatwave, officials in the western province of British Columbia said on Wednesday.
The toll represented a 195% increase on the 165 sudden deaths that would normally occur over that period, chief coroner Lisa Lapoint said.
"While it is too early to say with certainty how many of these deaths are heat-related," she said in a statement, "it is believed likely that the significant increase in deaths reported is attributable to the extreme weather BC has experienced and continues to impact many parts of our province."
The heat over western parts of Canada and the US has been caused by a dome of static high-pressure hot air stretching from California to the Arctic territories. Temperatures have been easing in coastal areas but there is not much respite for inland regions.
Janice Houldsworth, who lives in the British Columbia community of Castlegar, told the BBC she had not ventured outdoors for four days. "I've never experienced anything like this in all my 70 years," she said.
"We have blackened out all the windows, have fans running 24/7 constantly spraying with mist, cold foot baths, and showers and [are] drinking tons of liquid."
In Calgary, a worker installing air conditioning units says that typically the highest temperatures do not hit until later in the summer.
The rate of new installations "is about four times what we typically see," says Ryan Wandler.
At an affordable housing event in Kanata, Ontario, Mr Trudeau paid tribute to the victims and described heatwaves as a growing problem.
"The federal government, as always, is here to help in any way we can," he said.
In Vancouver alone, heat is believed to have been a contributing factor in the deaths of 65 people since Friday.
Mr Trudeau said that prolonged periods of high temperatures had been growing more common in recent years, "so realistically we know this heatwave won't be the last".
He then went on to talk about Canada's commitment to combat climate change to "make our air, and our economy, cleaner for now and for future generations".
Canada's southern neighbour, the United States, has also seen extreme heat.
In the US Pacific Northwest on Monday, temperatures hit 46.1C in Portland, Oregon, and 42.2C in Seattle, Washington, the highest levels since record-keeping began in the 1940s, the National Weather Service said.
US President Joe Biden said this latest heatwave was linked to climate change in a speech on Tuesday.
Can the heat be linked to climate change?
I've heard from scientists who say that in just a few days they'll be able to determine just how much human driven warming has contributed to the searing temperatures seen in British Columbia.
One interesting piece of evidence is the lack of respite that night brings - recent temperatures at midnight in BC have been 2C warmer than the normal summer daytime figure.
Researchers say this combination of day and night-time heat is very dangerous for humans - a study published last year indicated that these compound events are closely linked to emissions of greenhouse gases.
Natural variability and local factors such as sea breezes can raise or limit the impacts of extreme heat. But the bigger picture is the rising thermometer of global heating is impacting all events.
"Every heatwave occurring today is made more likely and more intense by human-induced climate change," Dr Friederike Otto from the University of Oxford told the BBC.
"Climate change is definitely one of the drivers of the intensity of this Canadian heatwave - but it is not the only one and determining how much it impacts it, is a work in progress."
Even if they can't directly attribute this heatwave to climate change, experts say the fingerprints of global heating are all over it.
Risk of fire
Both Mr Trudeau and Mr Biden have warned of another consequence of the heatwave - increased chances of wildfires.
On Wednesday Mr Biden met with governors of western US states and fire officials, as the annual North American wildfire season begins.
Mr Trudeau expressed a similar fear on Wednesday.
"The temperatures recorded this week are unprecedented. Lives have been lost and the risk of wildfires is at a dangerously high levels," he said.
Jodi Hughes, weather presenter at Global News Calgary, told the BBC that firefighters were extremely concerned at the possibility of wild fires, possibly sparked by thunderstorms that could occur as the weather pattern changes.
The infrastructure problem
At least a dozen deaths in Washington and Oregon are believed to be linked to the heatwave.
Many homes in British Columbia do not have air conditioning as temperatures are usually far milder during the summer months.
One Vancouver resident told AFP news agency that hotels seemed to be sold out, as people flocked there for air conditioning, adding: "I've never seen anything like this. I hope it never becomes like this ever again."
Officials in British Columbia have warned residents against leaving their doors open, after a spate of bears wandering into people's home.
In Vancouver, residents have reported car windows cracking and melting, even when they are not parked in the sun.
The city has seen 98 sudden deaths since Friday, with 53 recorded on Tuesday alone.
About two-thirds of the deaths have been in people over the age of 70, according to Vancouver police.
The country's weather service, Environment Canada, has issued heat warnings for the provinces of British Columbia and Alberta, along with areas of Saskatchewan, the Northwest Territories and Manitoba.
An electrical utility in Spokane, Washington, has also introduced rolling blackouts to cope with huge power demand as residents run air conditioners.
Amazon allowed members of the public into areas of its Seattle headquarters as a cooling-off location on Monday, while people in Portland also flocked to cooling centres.
The heat has been intense enough to melt cables, shutting down the Portland Streetcar Service on Sunday.
Mr Biden's comments about climate change on Tuesday came as he pitched his plan to update the country's infrastructure network.
In case you're wondering why we're canceling service for the day, here's what the heat is doing to our power cables. pic.twitter.com/EqbKUgCJ3K
— Portland Streetcar (@PDXStreetcar) June 27, 2021
Dozens of officers have been redeployed in the city, while the increased volume of emergency calls has created a backlog and depleted police resources.
Hospital officials have likened the surge in hospital visitations due to the heat to the early days of the coronavirus pandemic.
"The air is like fire," Sergiou Riverso told CTV News during a visit to Lytton, the Canadian village that recorded the all time highs.
"It's pretty crazy hot," added Lytton resident Erin Aleck.
"As soon as you come outside, it's like a punch in the throat," she said.
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https://news.google.com/__i/rss/rd/articles/CBMiM2h0dHBzOi8vd3d3LmJiYy5jby51ay9uZXdzL3dvcmxkLXVzLWNhbmFkYS01NzY2ODczONIBN2h0dHBzOi8vd3d3LmJiYy5jby51ay9uZXdzL3dvcmxkLXVzLWNhbmFkYS01NzY2ODczOC5hbXA?oc=5
2021-06-30 23:26:02Z
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