Canadian wildfires torch record acreage again as 2025 season rivals last year's devastation

With wildfires already burning more land than the annual average, Canada braces for another intense fire season fueled by extreme heat and climate-driven changes in its boreal forests.

Ian Livingston reports for The Washington Post.


In short:

  • Canada has already seen over 7.8 million acres burned by wildfires in 2025, surpassing the national 25-year annual average and rivaling the record-breaking 2023 season.
  • Multiple massive fires exceeding 250,000 acres are active across five provinces, with the largest — Saskatchewan's Shoe Fire — scorching more than 1.2 million acres.
  • Thick smoke continues to impact air quality across vast swaths of Canada, prompting Code Red alerts and evacuations in rural and Indigenous communities.

Why this matters:

As Canada burns again, the fires reflect a growing crisis where climate change turns the country’s vast boreal forests into tinderboxes. Longer summers, less snow, and warming temperatures — traced to human activity — are extending fire seasons and intensifying their behavior. The consequences stretch far beyond scorched earth: toxic smoke drifts into communities, worsening respiratory problems and triggering public health emergencies. What’s happening in Canada also poses cross-border risks, as smoke plumes can drift into the U.S., clouding skies and lungs hundreds of miles away. The 2025 season may not yet match 2023’s catastrophic scale, but it’s already sending an urgent signal that extreme fire seasons are becoming the norm, yet creating conditions that make life far from normal.

Read more: Wildfire smoke from Canada continues to choke U.S. cities as climate patterns worsen

A view of a house destroyed by a flood

How flooding made its way into the Ottawa election

On Canada Day, parts of Ottawa were hit with a one-in-200-year storm. Nearly four months later, it’s still having an impact as the polls open for Ontario’s municipal elections.

A man at a table working on a computer

Online tool tracks climate-related bills in 10 states

As voters prepare to cast their ballots, those concerned about global warming may want to learn which climate-related policies their elected officials have supported or opposed.

An aerial view of a forest with deforested area on the left

Lula wins Brazil election after cutting Amazon deforestation to record low

Lula’s victory in Brazil's presidential election brings hope for the Amazon — but far-right gains threaten progress.

An overhead view of rows of solar panels and wind turbines in the distance

The Michigan climate candidate courting opponents of Big Solar

Sunrise Movement co-founder William Lawrence is navigating backlash against data centers — and clean energy — in his bid for Congress.

An aerial view of two farmers standing next to raised beds

Study: Regenerative agriculture farms hold key climate solutions

A major study comparing 200 U.S. farms found that advanced regenerative farming practices increased soil carbon storage by nearly 40% compared with conventional methods while supporting greater biodiversity.

A city skyline with a layer of haze above the buildings

Why more than half the world has likely breathed unhealthy air this year

Even as many countries have made progress in cutting ozone-fueling emissions, high temperatures can outweigh those gains.
A large glacier with mountains in the background

This climate data scientist explains what the numbers really mean

Hannah Ritchie offers advice based on her many years studying the data behind clean energy, electric vehicles, and other climate solutions.
From our Newsroom
Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

Multiple Houston-area oil and gas facilities that have violated pollution laws are seeking permit renewals

One facility has emitted cancer-causing chemicals into waterways at levels up to 520% higher than legal limits.

Regulators are underestimating health impacts from air pollution: Study

Regulators are underestimating health impacts from air pollution: Study

"The reality is, we are not exposed to one chemical at a time.”

Pennsylvania governor Josh Shapiro speaks with the state flag and American flag behind him.

Two years into his term, has Gov. Shapiro kept his promises to regulate Pennsylvania’s fracking industry?

A new report assesses the administration’s progress and makes new recommendations

silhouette of people holding hands by a lake at sunset

An open letter from EPA staff to the American public

“We cannot stand by and allow this to happen. We need to hold this administration accountable.”

wildfire retardants being sprayed by plane

New evidence links heavy metal pollution with wildfire retardants

“The chemical black box” that blankets wildfire-impacted areas is increasingly under scrutiny.

Stay informed: sign up for The Daily Climate newsletter
Top news on climate impacts, solutions, politics, drivers. Delivered to your inbox week days.