Scientists from the University of Melbourne, analyzing the data of the Swedish satellite "One", showed that the column of smoke rose to an altitude of 17-19 kilometers a week after the start of the fires. Combustion products circulated around the planet at the latitude of the tropics for six weeks.
Scientists explain this phenomenon by the fact that forest fires are a hotbed of open fire, from where, like from a fire, a huge mass of smoke rises. There it cools and, rising even higher, forms a cloud - it is called pyrocumulative. It continues to gain height due to internal convective flows and turns into a thundercloud. Rains may not go at the same time, and lightnings cause new fires.
It is possible that soot from forest fires, being in the stratosphere for eight or more months, globally affects the climate. On the one hand, it can cool the air by scattering solar radiation, as is the result of volcanic eruptions. On the other hand, a huge amount of CO2 - the strongest greenhouse gas - enters the atmosphere. Of course, it enters the natural carbon cycle on the planet and will again be absorbed by the biomass from which it is taken. However, there are signs that this natural balance may be shaken, and too many fires, droughts, and the lack of rain all over the world will make forests unable to grow as fast as before. And an excess of greenhouse gases in the atmosphere enhances its heating.