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Deadly wildfires continue to ravage the Los Angeles area, as firefighters battle windy conditions to contain the out-of-control blazes. Containment does not mean that a blaze has been completely ...
Wildfire prevention programs around the world may employ techniques such as wildland fire use (WFU) and prescribed or controlled burns. [120] [121] Wildland fire use refers to any fire of natural causes that is monitored but allowed to burn. Controlled burns are fires ignited by government agencies under less dangerous weather conditions. [122]
Here’s a basic glossary of terms used to describe wildland fires. What does it really mean when a wildfire is ‘contained’ or ‘controlled’? Key terms explained
Utility-caused wildfires are a subset of human-caused wildfires that are directly ignited by utilities, usually power lines. They are unplanned ignitions that can cause wild burns. [ 1 ] Hotter and drier weather as a result of climate change has been liked to lower moisture content in vegetation , which, along with high tree mortality has ...
Wildfires can occur due to natural or man-made elements. The four most common natural elements that can cause a wildfire are lightning, an eruption from a volcano, sparks from a rockfall, and spontaneous combustion. [12] [13] The most common man-made causes for wildfires include debris burning or other carelessness and arson.
Drought conditions have also resulted in less water available to fight the fires and fewer opportunities to conduct the controlled burns necessary to keep dry brush under control.
Setting fire inside a control line to consume fuel between the edge of the fire and the control line. burning period The part of each 24-hour period when fires spread most rapidly, typically from 10:00 AM to sundown. bushfire The local name for a wildfire that occurs in the forests, scrubs, woodlands or grasslands of Australia or New Zealand.
Human-caused fires are also responsible for 97% of wildfires that threaten homes. People often start wildfires through dangerous actions, including open burning, campfires, firearms and equipment use.