What causes the high frequency of wildfires in Canada?

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What causes the high frequency of wildfires in Canada?

The Toronto Wildfire season has arrived in full force in Western Canada, resulting in evacuation orders and alerts in numerous communities in British Columbia and neighboring Alberta. This is due to the threat of uncontrolled blazes occurring. Since Friday, the BC administration has issued seven evacuation orders and five alerts in the province, displacing approximately 4,700 residents from their residences, according to the most recent wildfire situation report.

The situation is evolving rapidly, as officials reported 130 active wildfires, 14 of which were designated out of control, and emergency management minister Bowninn Ma of British Columbia issued a warning on Monday.

The 2023 Canadian wildfire season was the most severe on record, with 6,551 wildfires consuming nearly 46 million acres from the west coast to the Atlantic provinces and the far north. The environmental impacts, particularly those related to air quality, were substantial in both the United States and Canada. The 2024 wildfire season is expected to be devastating, as predicted, and disaster and climate experts have a reasonable understanding of the reasons.

The vast majority of the fires that are presently causing destruction in Canada have been raging since the previous fire season, and they have been quietly smoldering beneath the snowpack all winter.

According to scientists, these fires, which are occasionally referred to as “zombie flames,” serve as a stark reminder of the consequences of climate change. Research has found a correlation between the winter fires that have occurred in Canada during the recent period of scorching, arid springs and the persistent drought conditions. Fires are able to continue to ingest dense vegetation layers beneath the snowpack as a result of higher winter temperatures and reduced precipitation, according to scientists.

On Monday, Sonja Leverkus, a firefighter and ecosystem scientist from British Columbia, stated on CBS News that the current high number of wildfires in the northeast of the province is “a direct result of a severe drought that has persisted for three consecutive years.”

She anticipated that the situation would likely worsen before it improved due to the arid conditions.

Leverkus and her colleagues, as well as the communities they represent, are currently under evacuation orders from their place of origin, Fort Nelson, as a result of the flames they have personally experienced.

The Parker Lake wildfire glows in an aerial photograph taken by a B.C. Emergency Health Services crew member
An aerial photograph of the Parker Lake wildfire was captured by a member of the British Columbia Emergency Health Services personnel on May 10, 2024, through the window of an aircraft that was transporting patients from Fort Nelson, which is located in the vicinity. The fire is depicted as a luminous object in the image.

Her explanation was that “a substantial number of the ongoing flames this week were the result of subterranean wildfires from 2023.” “Spring has arrived in full force, accompanied by high wind, low relative humidity, heat, and no precipitation.” As a consequence, wildfires occur.

This week, wildfire expert Ben Boghean commented on the blaze that is currently threatening the Parker Lake community in British Columbia. He stated on Sunday that the severe drought conditions of last year have allowed fires to spread at a dizzying rate this spring, and the below-average snowpack has also made it easier for new fires to begin.

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