How much does a wildfire contribute to global warming?

Wildfires most certainly contribute to global warming because it coverts biomass and soil organic matter to carbon dioxide. According to The Intergovernmental Panel on Climate Change, “Globally, wild fires produce 1.7 to 4.1 gigatons (Gt) of carbon per year, approximately 3 to 8% of total terrestrial total carbon load.

There is an additional large enhancement of carbon dioxide emissions associated with fires stimulated by human activities, such as deforestation and tropical agricultural development. A striking example occurred during the 1997 to 1998 El Niño, when large fires in the Southeast Asian archipelago released 0.8 to 2.6 Gt.”