A study presented today states that 1,5 million deaths occur annually associated with air pollution caused by forest fires on the planet, proving that this destruction goes beyond the environmental impact, seriously affecting human health.

The study, published in the scientific journal Lancet, also highlights that there are notable geographical and socioeconomic disparities in these health impacts, revealing that more than 90% of these deaths occurred in developing countries, warning that the number is expected to increase in the coming years, because climate change has made forest fires more frequent and intense.

Climate Alarm

Forest fires and agricultural burnoffs are responsible for the emission of large amounts of harmful particles, such as carbon monoxide and fine particulate matter (PM2.5). These substances pollute the air and are directly linked to cardiovascular and respiratory diseases.

Between 2000 and 2019, approximately 450 annual deaths were attributed to heart problems associated with this pollution, while approximately 220 deaths occurred due to respiratory complications.

“Smoke from wildfires is a silent threat that affects long-term health.”

Researchers warn, adding that the most severe impact is felt in developing countries, where around 40% of these occurred in sub-Saharan Africa, a region that faces structural difficulties in dealing with the fires and their consequences.

Climate Inequality and Injustice

The geographic and economic disparity in the impact of wildfire smoke highlights significant climate injustice. While developed countries have the technologies and infrastructure to mitigate the effects of pollution, poorer nations lack the same resources.

“People in developing countries are unable to move away from affected areas or use air purifiers.”

The study's authors highlighted that this inequality exposes millions of people to unhealthy conditions, exacerbated by climate change, which makes fires more intense and frequent.

China, the Democratic Republic of the Congo, India, Indonesia, and Nigeria top the list of countries with the highest number of associated deaths. These data reinforce the need for a global approach that provides financial and technological support to the most vulnerable nations.

The Role of Climate Change

Climate change is one of the main drivers of the increase in wildfires. The combination of higher temperatures, prolonged periods of drought, and intense winds creates ideal conditions for fires to spread.

Studies suggest that without effective action, the number of deaths caused by tobacco pollution will continue to rise in the coming decades.

“The intensification of fires is directly linked to global warming.”

Scientists explain.

What Can Be Done?

In the face of this crisis, experts are calling for the implementation of policies that address both carbon emissions reduction and health impact mitigation. Some of the proposed measures include:

• Financial and technological support: Developed countries must increase financing to help the most vulnerable countries implement mitigation and adaptation strategies.
• Education and awareness: Campaigns to alert people about the risks of smoking and how to minimize exposure.
• Prevention technologies: Use of early fire detection systems and best agricultural practices to avoid unnecessary burning.
• Urban planning: Creation of refuge zones with purified air in fire-prone areas.

The recent decision, obtained in the COP29, increasing financing for developing countries to $300 billion by 2035 is a promising step, but insufficient. A more cohesive and ambitious effort is needed to address this global emergency.

Conclusion

Smoke from wildfires is an invisible killer that claims millions of lives annually, especially in developing countries. Climate change exacerbates this problem, highlighting the urgency of coordinated global action to protect the most vulnerable populations.

More than a public health issue, this is an ethical and climate challenge that demands serious commitments from world leaders. Only through joint efforts will it be possible to reduce the devastating impact of wildfire smoke and ensure a healthier and more just future for all.