Heat waves, droughts, cyclical climate changes, and regional weather patterns such as high-pressure ridges can increase the risk and alter the behavior of wildfires dramatically. Since the mid 1980s, earlier snowmelt and associated warming has also been associated with an increase in length and severity of the wildfire season in the Western United States Fire control consists of depriving a fire of fuel, oxygen or heat to prevent it from spreading or to put it out entirely.
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