14.1 established the bushfire hazard; today we shift to mitigation — reducing the risk before a fire starts, and evaluating how well each strategy actually works. Bushfire behaviour is driven by three things — fuel, weather and topography — and only one, fuel, is something we can manage. That single fact shapes everything that follows. In NSW this work is coordinated by the NSW Rural Fire Service, the world's largest volunteer fire service.
By the end you can:
Of the three drivers of fire behaviour we cannot change the weather and cannot move the topography — so mitigation concentrates on the one variable we can influence: the fuel load, the mass of dry leaves, bark and undergrowth available to burn. Reduce the fuel and you lower a fire's intensity, its rate of spread and the ember attack on homes. The NSW RFS hazard-reduction program runs year-round — planned burns, mechanical clearing and firebreaks — timed to cooler, calmer months. But mitigation manages risk; it never removes the hazard.
No single method suits every landscape, so agencies layer several. Prescribed (hazard-reduction) burning deliberately burns off ground fuel under mild conditions; mechanical clearing and slashing cut firebreaks near assets; thinning removes selected trees to break up the canopy; and targeted chemical control slows regrowth. Each carries a trade-off — smoke, cost, terrain limits or ecological impact — and the NSW RFS publishes hazard-reduction standards governing when and how burns are done.
+ cuts fuel • – repeat, smoke
+ firebreaks • – steep terrain
+ lower impact • – not extreme fire
+ suppresses regrowth • – health/env
Aboriginal peoples have used fire to care for Country for tens of thousands of years. Cultural burning is deliberately cool, slow and patch-based — small burns read from the land rather than one broad hot burn. It keeps fuel loads low, protects fire-sensitive species and regenerates food and medicine plants. Since the 2019–20 season it is increasingly recognised alongside contemporary hazard reduction. This is living knowledge, led by communities — approach it through endorsed sources with attribution: the Firesticks Alliance, AIATSIS, NITV and ABC Education.
The Australian Fire Danger Rating System gives one simple, national message about how dangerous a fire day will be — and what to do. Launched on 1 September 2022, it replaced a patchwork six-level scale with four clear levels. Each is a trigger for action, not just information. At Catastrophic, homes aren't designed to survive: leave early.
A defensible space is a managed, low-fuel buffer that gives a building a fighting chance. Clearing gutters and leaf litter, keeping grass short, trimming and spacing trees, and moving woodpiles all cut the fuel that carries fire to the walls. Pair it with water supply, non-electric pumps and a written Bush Fire Survival Plan agreed before the season. None of it guarantees survival on a catastrophic day — which is why the plan's first question is when to leave.
Mitigation isn't only physical — it's informational. Agencies turn data into decisions. Satellites and sensors detect ignitions and track fire fronts; GIS layers map fuel, terrain and assets; and spread models predict where a fire will run next, guiding where crews and warnings go. That intelligence reaches the public through the daily fire danger rating, emergency-warning apps and community briefings. The faster accurate information moves, the earlier people act — and early action, not last-minute escape, is what saves lives.
Emergency warnings & apps.
The daily fire-danger rating.
Map fuel; model spread.
Briefings & fire plans.
Before you evaluate the strategies, get the warning system clear. This short explainer from the ACT Emergency Services Agency walks through the four-level Australian Fire Danger Rating System — what each level means and the action it should trigger. Being able to name the levels and the response to each is easy marks in a short-answer question.
▶▶ Watch: Australian Fire Danger Rating System Explainer — ACT Emergency Services Agency (click → opens on YouTube)As you watch, note: (1) the four rating levels in order; (2) the action each level triggers; (3) what makes a day reach Catastrophic.
Every strategy in this lesson comes from an official emergency-management source. Use these to check the detail, quote a real agency, and build a research task. Naming the NSW RFS or the AFDRS in an answer is exactly the concrete evidence that lifts a response from Band 3–4 to Band 5–6.