California Air Resources Board

Prescribed burning is the controlled application of fire to the land to reduce wildfire hazards, clear downed trees, control plant diseases, improve rangeland and wildlife habitats, and restore natural ecosystems. Sometimes called a controlled burn or prescribed fire, prescribed burning is one of the most important tools used to manage fire today. As catastrophic wildfires continue to be a growing concern in California, the use of prescribed burning to reduce hazardous fuels is projected to increase. Daily burn decisions are issued based on the forecast of air quality and meteorological conditions that can affect smoke dispersion.
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