From Sep 1 to Sep 7, fire emission intensity exceeded 1,500kg per sq km, more than 10 times the Russian level, with the highest concentrations in Kalimantan in Indonesia's part of Borneo and eastern parts of Sumatra.

Wildfires are ripping across parts of Indonesia, destroying peatland and smothering the country in a toxic smoke so thick, people are struggling to breathe.

Fire emissions from Indonesia from September 1 to September 7 reached 19.7 million metric tons, overtaking Russia this week and making up more than a third of the global total,…