As the cost of fighting wildfires has risen in California and nationwide over the past decade, authorities are focusing on prevention as a key part of their fire strategy.
Hardscaping property, for example using paved paths and stone walls as potential fuel breaks, and practicing common-sense fire safety precautions while camping or hiking are also key. “Ninety-five percent of fires are still human-caused,” Ms. Freeman told The Epoch Times.
But prevention has been hindered by policy.
The wildfires in California’s mountains and foothills are the result of years of fire exclusion in the high timber ecosystems of the upper Sierra, said Ms. Freeman.
“We got upside down,” she said. For years, fire was kept out of the timber and foothills, and vegetation and underbrush grew unchallenged.
“Those timber systems are fire-adapted, and they have what they call a ‘natural fire return interval,’ which is when, often, a natural fire would start from lightning,” Ms. Freeman stated.
That cycle occurs every seven to 12 years. “When you exclude fire, you’re preventing the forest’s ability to manage itself,” she said.
Dense vegetation, grass, brush, and water-starved trees are the perfect environment for fire ignition, where a single lightning strike can spark a fire with “higher severity” and extreme resistance to containment, she explained.
Years of drought have led to stressed trees, and years of fire exclusion have created a tinderbox. Ms. Freeman called the compounding factors a “force multiplier” making modern fires “resistant to control.”
Suppression costs include funding for firefighters, smoke jumpers, bulldozers, support personnel, and air assets like tankers and helicopters.
Damage to structures and property factors into the total fire costs. The report noted that over the past 20 years, the average annual insurance industry payout for wildfire structures has hit $4 billion.
“We have a very high population base in what we call the wildland-urban interface,” Ms. Freeman said.
The presence of structures or human life in otherwise rural areas presents unique challenges to containment. “You have to work around those values at risk—life and property,” Ms. Freeman said.