Urban sprawl on wooded lands presents unique challenges when fires spread: experts
As more people build houses on the fringes of wooded areas, the approach to firefighting is getting more complex — and the out-of-control wildfire near Halifax is one stark example, experts say.
Robert Gray, a wildland fire ecologist in British Columbia, said whether a fire is in an urban or wildland setting, one of the first things firefighters do is establish a containment zone. “The direct attack … is where we’re spraying water directly on a fire,” he told reporters. “Indirect attack … is where we are removing vegetation from an approaching fire.” The purpose of removing vegetation and creating a perimeter is to starve the fire of fuel, he told reporters this week.
Blazes that experts have said are examples of interface fires include the Fort McMurray and Slave Lake, Alta., infernos where homes were built on the edge of woods. The 2011 Slave Lake fire destroyed more than 400 homes and the 2016 Fort McMurray wildfire destroyed more than 2,400.
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