Green Up Moggill

Let’s use the best science to make Brisbane safe, says Greens candidate


FOR IMMEDIATE RELEASE

“In the wake of the Victoria Black Saturday disaster, it is important to consider whether fire management in Queensland is up to scratch,” says Greens candidate for Moggill, Dr Philip Machanick. “In consulting my science advisors, I am troubled to learn that some preventive fire strategies in Brisbane could be increasing risk of fire.”

There has been reporting in Victoria of the need to reduce fuel loads, and to avoid dangerous strategies in high-fire areas like planting big trees close to houses.

“Reducing fuel loads sounds like a good idea,” Dr Machanick continues, “but it is also important to ensure that you don’t end up making the problem worse by replacing the burnt fuel by vegetation that burns hotter and faster. The problem arises because frequent burn-offs of the same large area selects for fire-adapted vegetation. Why is this bad? Fire adapted vegetation uses a combined strategy of burning hot and fast to clear the competition, then growing back rapidly after the fire. This means that a poorly-managed preventive burning program can increase the risk of catastrophic fire.”

Addressing the Queensland situation specifically, Dr Machanick says, “I don’t know if this is the case in Victoria, but in Queensland, we have a lot of exotic African grass, much of which is highly fire-adapted. Around Brisbane, the city council has a preventive burning program that fails to take this fact into account. If you look for areas they’ve burnt, you can see singed trees with no indigenous undergrowth, only exotic grasses, ready to burn hotter and faster next time some dolt drops a smouldering cigarette butt out of their car window, or deliberately lights a fire.”

Natural undergrowth

Similar area after burning

Dr Machanick takes The Australian to task for assigning blame to the Nillumbik Shire Council before all the facts are known, and publishing strongly-worded opinion pieces that say the best science was ignored, while survivors are still grieving. “It’s possible that mistakes were made, but the people who made these decisions have paid a heavy price. It is extremely insensitive to go hard on criticising them when we should be focusing on disaster recovery. This is the same paper that tells us routinely that we should ignore the best science on climate change. I hope this means they are coming around to the view that we should always use the best science.”

He concludes: “In the wake of the Victorian disaster, rather than the usual finger-pointing and blame shifting, I hope we can have some real solid debate on the best science of fire prevention and survival. We have to get this right because climate change will lead to more frequent, longer and hotter heat waves.”