Air pollution from fires linked to the deaths of 1.5 million people per year worldwide, according to a study published in “The Lancet”

Air pollution caused by fires is linked to more than 1.5 million deaths per year worldwide, the vast majority of which occur in developing countries, according to a study covering 2000 to 2019 published Thursday, November 28.

This number is expected to increase in the coming years as climate change makes wildfires more frequent and more intense, explains the study published in the scientific journal The Lancet.

The international team of researchers examined data on both raging forest fires and agricultural land burning to clear fields.

From 2000 to 2019, some 450,000 deaths per year from heart disease were linked to air pollution from fires, researchers found. And another 220,000 deaths from respiratory illnesses could be attributed to smoke and particles released into the air by the fires.

Africa, China and India most affected

Worldwide, the deaths of 1.53 million people from all causes were, in total, associated with air pollution caused by fires, according to the study. More than 90% occurred in low- and middle-income countries, with almost 40% in sub-Saharan Africa alone. The countries with the highest number of deaths are China, the Democratic Republic of Congo, India, Indonesia and Nigeria.

A record number of illegal burning of agricultural fields in northern India is partly responsible for the apocalyptic-looking cloud of pollution, with concentrations of harmful microparticles well above international health standards, which covers the Indian capital.

The authors of the study call for a “urgent action” to deal with the considerable number of deaths caused by these fires, placing emphasis on “climate injustice” experienced by poor countries.

Additionally, ways to avoid fire smoke – moving away from the most polluted area, using air purifiers and masks, staying indoors – are not available to people in poorer countries , recalled the researchers. The latter therefore call for more financial and technological support for the populations of the most affected countries.

The study comes a week after the United Nations climate talks, where delegates agreed to an increase in climate finance deemed insufficient by developing countries, and after the state of emergency national declared by Ecuador, following forest fires which razed more than 10,000 hectares in the south of the country.