A Brazilian study published in the journal Communications Earth & Environment shows how wildfires and forest burning for agriculture influence rain cloud formation in the Amazon. According to the authors, aerosols (tiny solid particles and liquid droplets emitted into the atmosphere by fire) hinder the freezing of cloud droplets when the atmosphere is humidified, but can also promote freezing when the atmosphere is dry. This alters the natural functioning of clouds and their typical height, and may also affect precipitation and the amount of sunlight reaching the ground.
source https://phys.org/news/2021-10-scientists-forest-cloud-formation-amazon.html