At a glance: what you need to know about Canada wildfires and smoky US skies

Hazy skies hung over north-eastern US a day after the midwest received a similar alert from the Environmental Protection Agency

Canada is dealing with a series of intense wildfires that have spread from the western provinces to Quebec, with hundreds of forest fires burning. Wind has carried smoke from the fires southward, triggering air-quality alerts throughout the United States.

The US Environmental Protection Agency (EPA) on Tuesday issued a poor air-quality alert for New England, a day after parts of Illinois, Wisconsin and Minnesota received a similar advisory. Last week, US officials as far south as Maryland, Virginia and Pennsylvania reported being affected by the wildfires.

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Nova Scotia hopes forecast rain will help contain largest wildfire on record

Huge Barrington Lake fire now considered province’s largest wildfire but wet weather expected from Friday into next week

Rain on Friday and a rainy forecast for the weekend have fire officials hopeful they can get the largest wildfire ever recorded in Canada’s Atlantic coast province of Nova Scotia under control.

That wildfire and three others in the province have prompted air quality warnings in US regions as far south as Virginia and Maryland.

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Nova Scotia: fears extreme heat and strong winds could worsen wildfires

Officials say combination of high temperatures and stiff breezes could lead to ‘extreme fire behaviour’ in Maritime province

Officials in the Canadian province of Nova Scotia say a day of blistering heat, strong winds and low humidity could lead to “extreme fire behaviour” as they work to control wildfires that have forced more than 20,000 people from their homes.

Fire crews said on Thursday they were concerned about a phenomenon known as “crossover”, which occurs when temperature rises above 30C, humidity drops below 30% and winds exceed 30km/h.

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Firefighters tackle Highlands wildfire that may become UK’s largest ever

The blaze, which began near Inverness in Scotland, is still not out after four days and its cause is unknown

Firefighters have spent four days battling a wildfire in the Scottish Highlands that officials believe is on its way to becoming the largest by area on record in the UK and which has been photographed from space.

The fire broke out at Cannich near Inverness on Sunday and has grown to an area measuring roughly 8km by 8km (24 square miles). Two firefighters were injured on Tuesday after being in an accident in their all-terrain vehicle while tackling the blaze. They have since been discharged from the hospital, the community safety minister, Siobhian Brown, said in the Scottish parliament on Wednesday.

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‘Unprecedented’ Nova Scotia wildfires expected to worsen, officials warn

More than 18,000 people remain under evacuation order outside Halifax as Canadian PM Justin Trudeau pledges federal assistance

Officials in the province of Nova Scotia say unprecedented wildfires that have forced thousands from their homes will keep growing despite the “water, raw muscle power and air power” deployed by fire crews.

As of Wednesday, more than 20,000 hectares of the Maritime province were burning from 13 wildfires, including three fires that considered out of control. More than 18,000 people remain under evacuation order outside Halifax, the region’s largest city. More than 200 structures, the majority of which are homes, have been destroyed by the fire. No fatalities have been recorded.

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Nova Scotia officials declare emergency over rare and ‘very aggressive’ wildfires

Thousands forced from their homes after spring fires destroy buildings in Canadian province

Rare and “very aggressive” spring wildfires in the Canadian province of Nova Scotia have destroyed many buildings and forced thousands from their homes and prompting officials to declare a local state of emergency.

Over the weekend, residents of the Maritime province posted video of thick smoke encroaching over Halifax as a nearby blaze rapidly swept through a suburb.

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Heavy rains in Canada offer relief from wildfires but could lead to flooding

Crews hope wet weather could be ‘turning point’ after worst start to fire season on record in which area the size of Wales has burned

Heavy rains have brought relief to western Canada, in what crews hope could be a “turning point” in a protracted fight against wildfires, but officials also warned the much-needed downpour could lead to catastrophic flooding – and fresh blazes from lightning strikes.

Officials in Alberta said that cool, wet weather over the weekend – and more forecast for the coming days – promised a respite after the worst start to a fire season on record, in which 512 wildfires have already consumed more than 945,000 hectares – surpassing the previous record 615,00 hectares for the same period in 2019.

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Canada: dry weather and shifting winds threaten to spread Alberta wildfires

Province has 90 actives blazes, 23 of which are out of control, with thousands evacuated and oil and gas production hit

Tinder-dry weather and shifting winds in western Canada have elevated the risk of spreading wildfires in the province of Alberta where thousands have already been forced from their homes.

About 90 wildfires are active in Alberta, with 23 out of control, according to the provincial government. At one point the fires pushed more than 30,000 people out of their homes while oil and gas producers shut in at least 319,000 barrels of oil equivalent per day, or 3.7% of national production.

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Canada: extreme ‘heat dome’ temperatures set to worsen wildfires

System – extremely rare for this time of year – likely to fuel fires that have already displaced tens of thousands of residents

Western Canada is bracing for a “heat dome” weather system that will push temperatures to new records over the weekend, and is likely to worsen wildfires that have already displaced tens of thousands of residents.

Seventy-five active wildfires burned in Alberta on Thursday, with 23 listed as out of control. In some areas, oil and gas production, which typically resists weather-induced shutdowns, was briefly shuttered.

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At least 21 dead as wildfires rage across Urals and Siberia

Dead are mainly elderly people unable to flee, Russia media report

At least 21 people have died in wildfires in Russia’s Ural mountains, state media reported.

Wildfires have raged in the Kurgan region of the Urals and in Siberia all week. Local media reported that most of the dead were older people unable to leave their homes. According to local authorities, many of the deaths occurred on Sunday in the village of Yuldus, in Kurgan province on the border between the Urals and Siberia.

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Thousands forced to evacuate as wildfires ravage western Canada

More than 13,000 people were ordered to leave Alberta as 78 fires burned, and officials say the blazes are expected to intensify

A week of record hot weather in western Canada has forced thousands of people to evacuate their homes, as wildfires raged in parts of Alberta and rapid snow melt triggered flooding across interior British Columbia.

By Friday, more than 13,000 people were under evacuation orders in Alberta, as 78 fires burned. Among the worst-hit areas was the Little Red River Cree Nation in the north of the province, where the 1,458-hectare Fox Lake fire consumed 20 homes and the police station.

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‘Even in the realms of extreme, it’s extreme’: how UK music festivals are planning for freak weather

Whether waterlogged from flooding or parched and prone to wildfires, festival sites are having to plan for every eventuality – and the costs are substantial

Wellies and sun hats are the traditional first guard against the elements at festivals, but this summer they may not be enough to protect revellers. Flood defences, wildfire response teams and satellite weather-monitoring technology are among the ways UK music festivals are adapting to extreme weather events fuelled by the climate crisis.

Last summer’s record high temperatures in the UK hit during festival season, and the changing climate has become one of the industry’s biggest challenges, increasing the frequency, severity and likelihood of weather such as heatwaves and thunderstorms. With preparations underway for this year’s festival season, event organisers are increasing their contingency plans to secure their events, at a time of higher costs in labour, energy and insurance.

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Early wildfire in Spain’s Valencia region forces 1,500 villagers to evacuate

Emergency services say they have contained spread of blaze that has scorched more than 4,000 hectares

Spain’s first big wildfire of the year has scorched more than 4,000 hectares (9,900 acres) of forest and forced 1,500 people to leave their homes in the Valencia region.

Residents recounted fleeing their houses and leaving animals behind. “Bad – how am I supposed to feel? Your town is burning, your life is burning, Our animals were there and no one can tell us anything,” said Antonio Zarzoso, 24, who had to leave the village of Puebla de Arenoso.

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NSW swelters in record heat as firefighters battle blazes

Wagga Wagga experiences its hottest March weather yet, breaking a previous high set in 1983

Inland New South Wales sweltered through record-breaking March temperatures on Sunday as fires burned across the state.

While inner Sydney remained relatively cool – the mercury peaked at 28.9C, thanks to a sea breeze – the state’s western districts scorched, with temperatures above 42C in Bourke, Cobar and Brewarrina.

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Smoke from Australian bushfires depleted ozone layer by up to 5% in 2020, study finds

Lead researcher says destruction was similar to process of Antarctic ozone hole forming each spring ‘but at much warmer temperatures’

Particles in bushfire smoke can activate molecules that destroy the ozone layer, according to new research that suggests future ozone recovery may be delayed by increasingly intense and frequent fires.

A study published in the journal Nature has found that smoke from the 2019-20 Australian bushfires temporarily depleted the ozone layer by 3% to 5% in 2020.

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Chiang Mai to hand out face masks as dust from fires hits hazardous levels

Thai authorities struggle to contain forest fires, a persistent cause of air pollution during the dry season

The Chiang Mai authorities in northern Thailand will hand out face masks to the public as the province struggles with dangerously high levels of air pollution caused by persistent forest fires.

The fires are an annual problem between the months of December and April, when farmers set light to their fields to clear the land ready for the next crop cycle.

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Chile firefighters battle blazes amid warning that wildfires could get worse

Fires have burned 270,000 hectares and killed 24 in south-central region as mega drought fuels second worst fire year on record

Chilean firefighters are battling to hold back forest fires as authorities warned that persistent hot and dry weather could potentially exacerbate what are already the deadliest blazes in the country’s recent history.

The fires, which have consumed 270,000 hectares (667,000 acres) of land, have killed 24 people so far in south-central Chile and already made 2023 the second worst year in terms of hectares burned after the so-called “fire storm” that hit the country in 2017.

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Chile wildfires kill at least 23 people as 40C heat hampers effort to stop spread

Sixty-six people hurt and 1,500 seeking refuge in shelters after 800 homes were destroyed

Record summer temperatures of more than 40C (104F) are hampering efforts to tackle dozens of wildfires across central Chile that have killed at least 23 people, destroyed 800 homes and prompted the declaration of a state of emergency in three regions.

Sixty-six people have been hurt in the fires, while almost 1,500 others are seeking refuge in shelters, according to an update on Sunday from the national forestry agency, Conaf. The state body said 87 fires were being still fought and 148 had been brought under control.

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Chile widens state of emergency as raging wildfires leave at least 13 dead

President Gabriel Boric cuts short vacation as heatwave fuels nearly 40 blazes across southern and central regions

Chile’s government has declared a widened state of emergency amid wildfires that have killed at least 13 people and consumed about 14,000 hectares (35,000 acres), as the South American country endures a summer heatwave across southern and central swaths of the country.

The interior minister, Carolina Toha, said on Friday morning the government had declared a catastrophe in the region of Biobío, joining its neighbouring region Ñuble, which President Gabriel Boric announced on Thursday evening, allowing the deployment of soldiers and additional resources.

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Biggest climate toll in year of ‘devastating’ disasters revealed

Most expensive storm cost $100bn while deadliest floods killed 1,700 and displaced 7 million, report finds

The 10 most expensive storms, floods and droughts in 2022 each cost at least $3bn (£2.5bn) in a “devastating” year on the frontline of the climate crisis, a report shows.

Christian Aid has highlighted the worst climate-related disasters of the year asmore intense storms, heavy downpours and droughts are driven by rising global temperatures as a result of human activity.

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