Fri Sep 05 06:56:31 UTC 2025: ## Wildfires Unleash Continent-Spanning Air Pollution Crisis, Warns UN
**Geneva, Switzerland** – A new report from the World Meteorological Organization (WMO) has sounded the alarm on the increasingly devastating impact of wildfires on global air quality, warning that these blazes are releasing a dangerous cocktail of pollutants capable of affecting regions thousands of miles away.
The WMO’s annual Air Quality and Climate Bulletin, released Friday, highlights the significant contribution of wildfires to air pollution in 2024, particularly in the Amazon, Canada, and Siberia. Fueled by climate change, these fires are emitting a “witches’ brew” of harmful particles, including PM 2.5, which can penetrate deep into the lungs and cardiovascular system, posing serious risks to human health, infrastructure, and ecosystems.
“Wildfires are a big contributor to particle pollution and the problem is expected to increase as the climate warms,” the WMO stated, emphasizing the urgent need to address climate change and air quality in tandem.
The report notes that wildfires in Canada in 2024 led to elevated PM 2.5 levels in Europe, demonstrating how air pollution can transcend continental boundaries when meteorological conditions are favorable.
The World Health Organization estimates that air pollution contributes to over 4.5 million premature deaths annually, underscoring the gravity of the situation.
Despite the concerning trend, the WMO emphasized that improvements in air quality are possible through targeted mitigation measures. Citing examples from Europe, the United States, and China, the report highlighted the positive impact of policies aimed at reducing pollution. Eastern China, in particular, has seen a dramatic decline in PM 2.5 levels thanks to sustained efforts.
“When measures are taken, it works,” said Paolo Laj, the WMO’s global atmosphere chief, urging countries to implement better monitoring and policies to safeguard human and environmental health, and reduce agricultural and economic losses.
First Piper 