Roger Underwood – Wood Central https://woodcentral.com.au Thu, 26 Dec 2024 12:26:14 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.1 The Case of the ‘Spicci’ Log: The WA Beach Mystery Solved? https://woodcentral.com.au/the-case-of-the-spicci-log-wa-beach-mystery-solved/ Fri, 16 Aug 2024 07:24:57 +0000 https://woodcentral.com.au/?p=19928 The ‘Spiccy Log’ – solving a South Coast mystery – is the story of my discovery of a strange log in the dunes behind one of Western Australia’s most beautiful and wildest South Coast beaches.

Resolving the mystery took me to many places, including the Indonesian rainforests, wartime history, timber identification and properties, and oceanography.

Many people helped me with my research, for which I am grateful,

Holidaying at Nornalup, a small town in the Great Southern region of Western Australia, I took a one-day trip in to Point Conspicuous on WA’s southern coastline.

I had not been there for many years, but my mind conjured up a memory of soaring limestone cliffs, granite outcrops and Southern Ocean rollers coming in to a wide, spray-drenched beach.

It was also part of my plan to check out the red-flowering gums (Eucalyptus ficifolia), one of the most widely planted ornamentals of all Australian trees and native only to a tiny pocket of bushland just inland from the Conspicuous Coast. It was summertime, and I knew they would be in full and gorgeous blossom.

Since I last visited Point Conspicuous, the ‘parkie’s have constructed a first-rate wooden path and stairway down between the dunes from the carpark to the beach. As we approached the bottom of the path, I caught sight of a large and weather-beaten log wedged in a gully at the foot of a dune. It was so totally out of context with its surroundings that I had to scramble down and across the gully for a closer look. Little did I know that my curiosity over the “Spiccy Log” (as it is now known) would lead me on a voyage of discovery, and to investigations into Indonesian rainforests, endangered species, oceanography and war-time history.

The first thing I noticed about the log was that it had been neatly cross-cut with a saw at both ends. This suggested it was a product of timber cutting, not simply an old fallen tree washed down from the bush. I briefly considered that it might have originated on a farm further inland, but this was clearly not possible.

The little creek in which it was lodged was dune seepage and unconnected to any inland waterway. And in any case, our native eucalypts all have timber that is denser than water and the logs would not have floated downstream even had there been a stream.

The second thing I noticed was that the log was heavily pitted by marine borers and eroded by salt water and ocean waves and winds. It looked to me as if it had been at sea and then sand-blasted on the beach for many years.

At this point I might mention that logs are rarely if ever seen on Western Australian beaches. This explains my surprise when I first visited the beaches of Oregon and Washington in the Pacific Northwest of the USA.

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Typical beach scene smothered by logs at Oregon on the Pacific Northwest. (Photo Credit: CV Photos)

They are littered from one end to the other with logs, stumps and bits and pieces of trees. It was a most unusual sight for the eyes of an Australian forester.

There are many reasons for this, the principal one being that the logs from this region are buoyant, while those from Western Australian forests are not.

Getting back to the mysterious log at Conspicuous, my curiosity peaked. I began to wonder if there was any folklore about it and contacted the local historical society, and the Parks and Wildlife people. Nobody knew anything.

I checked with an old mate Ray Flanagan, who for many years had been a forester at Walpole, had lived nearby and had fished at Conspicuous beach many times. Ray knew the log well. When he first came across it, he said, it had been right down on the shoreline with the surf smacking over it, arriving, most likely, 25 years ago

So, I calculated that since its arrival, the log had moved about 500 metres inland across the beach and into the dunes. Presumably it had been washed and rolled in by the violent winter storms which notoriously lash this part of the coast.

The next job was identification. Here I was helped by the Walpole Historical Society who organised approval from the Parks and Wildlife Service, and then the extraction of a small sample of the timber which was duly delivered to me.

The outer layers of the log were crumbly and fissured, but the inner heartwood was still sound. The wood was brown and light. I could see at once that ‘Spiccy’ came from no native Western Australian tree, but for an accurate identification I needed specialist advice.

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Timber sample from the ‘Spiccy Log’ showing weathered exterior and well-preserved heartwood

I took a sample to my forestry colleague and good mate Dr Graeme Siemon, Australia’s foremost expert on timber identification. Graeme not only knew the names of trees that most Australian timber come from at a mere glance, he also had ID keys to the timbers of the world inside his computer. Within minutes he had tracked it down – the log had come from a Hopea sangal tree.

This is a rare tree found only in the tropical rainforests of the Indonesian-Malay Peninsula in PNG and Thailand. In Indonesia, the tree is sometimes known by the common name Bengal, while the timber is (or rather once was) sold under the trade names of Erawan and giam.

I have not been to Indonesia and do not know the tree. However, some elementary research soon disclosed two things of interest.  Firstly, the tree (in the wild) is so rare these days that the numbers can be counted on one hand. It has been selectively harvested for its valuable timber over the years, but evidently no attempt had been made to regenerate the tree after logging. I feel sure things are different today, but up until a few years ago the logging of Indonesian rainforests was not automatically followed by reforestation, as was always the case for logging in WA forests.

Secondly, I discovered, there was once a famous Hopea sangal tree that grew adjacent to the notorious Changi Goal in Singapore, where so many Australians had a hard time during World War 2. Known as the ‘Changi Tree’ it was extremely tall (quoted by Wikipedia as 76 metres, which I do not think can possibly be correct) and was a major landmark in Singapore from at least the 1880s until the early 1940s. It was felled at the time of the Japanese invasion as the locals feared it would be used as an artillery ranging point.

One superb Hopea sangal tree did survive the war in Singapore. Indeed, for some time it was thought to be the last remaining individual of this species anywhere in the world. This tree was shamefully (and illegally) felled by property developers in 2002.  Luckily, however, local foresters gathered seed from the felled tree and raised hundreds of seedlings, which were planted out in a suitable locale in an attempt to recover the species.

To the best of my knowledge, no Hopea seedlings have ever been planted in Australia, certainly not in the south-west of Western Australia where the climate is temperate, not tropical, so the species would not prosper.

So how did a substantial log of Hopea sangal find its way from the rainforests of Indonesia to a beach on the south coast of Western Australia? There are two possibilities – either it fell off or was jettisoned from the deck of a freighter carrying logs to Australia; or it floated down of its own accord.

The first explanation is unlikely. Australia has never been an importer of rainforest logs (sawn timber, yes, but not raw logs), and even if it was, surely these logs were so valuable as to have been well secured and carried within the ship’s hold. I think it more likely that the log entered the sea by floating down-river from a timber camp in Borneo or Java, or perhaps escaped as a log raft in an Indonesian harbour.

At this point I sought the advice of the Professor of Oceanography at the University of WA Dr Charitha Pattiaratchi. He unhesitatingly supported the ocean voyage theory, drawing my attention to the Leeuwin Current (see illustration) that flows south all the way down from Indonesia and Malaya along our west coast, before rounding Cape Leeuwin and flowing strongly to the east.

According to Professor Pattiaratchi, a buoyant log could very easily “go with the flow” of the Leeuwin current and end up on Conspicuous Beach … although the voyage might take many years.

If this is indeed the solution to the mystery, it is surprising that more Indonesian logs have not turned up, either on west or south coast beaches. The answer is probably that they have, but they have not been recorded or investigated. I have heard an unconfirmed report of a log on the beach at Coodamurrup (west of Walpole) and I am well aware that baulks of Burmese teak washed up on the west coast in the early days, and the pioneer settlers made good use of them. Perhaps other logs that arrived on south coast beaches ended up being slabbed out for cattlemen’s huts or used as firewood by fishermen.

Whatever the case, I like to think that the mystery of the “Spiccy Log” is now resolved … or at least a credible explanation has been presented. 

My lingering worry is that the theory is still only a theory and lacks proof. What we now need is for a benevolent millionaire to arrange for the tagging and release of 50 buoyant logs (sustainably harvested, of course) into the ocean currents flowing south from Indonesia, and their discovery on a south coast beach 50 years or more hence. There would, of course, be people and organisations who would object to such a scheme (nocturnal yachtsmen among them), but to me it doesn’t seem too different an idea from the tagging of whales or sharks and would be a worthwhile contribution both to folk history and science.

I also like to think that the future of the ‘Spiccy Log’ might be studied and documented. Perhaps an annual inspection and photograph, with records maintained in a file somewhere. It is the sort of project local schoolchildren might undertake under the supervision of their geography teacher.

The most likely outcome, in my opinion, is that the log will gradually be engulfed by the adjacent sand dune, eventually disappearing, and then maybe reappearing 30 years down the track. This process seems to have already started.

(Story dedicated to the memory of Dr Graeme Siemon, who died in March 2024, a fine forester and research scientist, an Australian expert in timber identification and a cheerful and loyal friend over the 40 years that I knew him).

• Extracted from the widely-read Forest Leaves, a blog created by Roger Underwood.

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Reflecting on Desert Oaks for Planet Ark’s National Tree Day https://woodcentral.com.au/reflecting-on-desert-oaks-for-planet-arks-national-tree-day/ Sat, 29 Jul 2023 21:42:16 +0000 https://woodcentral.com.au/?p=9077 Planet Ark’s National Tree Day started in 1996 and has grown into Australia’s largest community tree planting and nature care event.

It’s a call to action for all Australians to get their hands dirty and give back to the community.

While every day can be Tree Day, the celebration of Schools Tree Day and National Tree Day occur on the last Friday and Sunday in July – July 28 and July 30.

Celebrating these special days, I thought it might be appropriate if my new post on the Forest Leaves Blog was a story about a tree.

It is the desert oak, one of my favourite tree species, which reminds me of a query I got from Argentina-based forester Evan Shield one day:

“Just how many favourite trees do you have, Roger?”

It was a pleasure to enhance the text with superb photographs by Jack Bradshaw, Andrew Burbidge and Pat Fitzgerald.

These, I think, capture the beauty of the tree within the beauty of the landscape in which it grows.

If you have not had the good fortune to explore or travel through Central Australia, you will feel you have been there after viewing these photos and reflecting on some of the authors I have quoted in the story.

Editor’s note: Brisbane forester Dr Gary Bacon tells us Roger’s references to the desert oak well and truly caught his eye.

Recently, Gary had much exposure to the photogenic tree in central Australia, and some of his examples appear here.

The Desert Oak as photographed by Wood Central contributor Dr Gary Bacon in Central Australia. (Photo Credit: Dr Gary Bacon)

He also asks the question:

“What is the difference between the ages of the pencil crowns and broad crowns?”

“According to the locals at Yulara, there is a 100-year difference, and I have never felt a more coarse oak branchlet, with the ultra-small true leaves hard and sharp like small rose thorns.”

Allocasuarina decaisneana, commonly known as desert oak, desert sheoak or kurkara by the Anangu People, is a species of flowering plant in the family Casuarinaceae and is endemic to Central Australia.

It is a dioecious tree that typically grows to a height of 10–16 m (33–52 ft) and has long, drooping branchlets, the leaves reduced to scales in whorls of four, the mature fruiting cones 28–95 mm (1.1–3.7 in) long containing winged seeds (samaras) 8.5–17 mm (0.33–0.67 in) long.

The bark of the Desert Oak as photographed by Wood Central contributor Dr Gary Bacon in Central Australia. (Photo Credit: Dr Gary Bacon)
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What Australia Can Learn from Canada’s 2023 Wildfire Season https://woodcentral.com.au/what-australia-can-learn-from-canadas-2023-wildfire-season/ Tue, 11 Jul 2023 22:30:00 +0000 https://woodcentral.com.au/?p=8412 The recent multi-million-hectare forest fires in Canada have again highlighted the dichotomy of opinion within the Australian community regarding bushfires.

The knee-jerk response from environmentalists and most academics has been, “It’s all due to climate change”.

Fire scientists and bushfire operational people, on the other hand, many of whom are in contact with Canadian land and bushfire managers, draw an entirely different conclusion: irrespective of the cause of the ignitions, the explanation of why the fires have been so difficult to control and have done so much damage is the absence of sound land management – in this instance, the failure by Canadian authorities to prepare potential fire grounds in the expectation of fire.

The reports my colleagues and I have received from young Western Australian men and women deployed as firefighters in Canada have been especially revealing.

They recount how they have been fighting fires in forests that have been logged and then abandoned and of forests left long-unburnt, carrying tonnes of flammable fuel. And they have been struck by three things:

  • The enormity of the resources brought to bear on firefighting in North America but which are still unable to control the fires.
  • The futility of controlling fierce forest fires with aerial water and retardant dropping.
  • The difficulties in constructing fire containment lines in forests growing on thin, mossy soils overlaying permafrost; bulldozers become bogged or disappear into sinkholes.

“Would it not have been better to do some fuel-reduction burning in these areas so that tracking the edge of wildfires with bulldozers and trying to extinguish them with water bombing would not be necessary?” is a question on the lips of many experienced Australian bushfire specialists as they contemplate the Canadian disaster.

The dichotomy of views about the bushfires (climate change versus ineffective land management) echoes the other great bushfire controversy in which Australia is mired: what is the best approach for dealing with the bushfire threat? 

One group (mostly academics and environmentalists, supported by retired ‘fire chiefs’ ready for their close-ups) opts for Emergency Response (sometimes known as ‘the American Approach’) – wait for a fire to start and then throw everything at it so that it is extinguished before it does any damage.

Footage courtesy of @globalnews

The alternative approach (mostly promoted by bushfire practitioners and at once known as ‘The Australian Approach’) accepts that an emergency response will always be needed since bushfires can never be prevented.

Still, it adds that if the fire grounds are properly prepared for a fire, then fires will be easier, cheaper and safer to control by emergency responders.

The chief mitigation tool of the second group is fuel-reduction burning – deliberate, supervised burning under mild weather conditions.

The aim is not to ‘prevent’ bushfires, which is impossible, but to reduce the amount of flammable fuel in bushfire-prone bushland before a bushfire starts.

It is combustible fuel, comprising dry leaves, twigs and flammable shrubs, that feed bushfire intensity, and it is bushfire intensity that determines how hard, dangerous and costly a fire is to control.

Mostly this argument has been one-sided in recent times.

The Emergency Response proponents are well in control of bushfire management in Queensland, NSW, and Victoria.

In these jurisdictions, bushfire mitigation must be properly funded or carried out to ensure it effectively controls bushfires.

Fuel-reduction burning is condemned because its opponents assert:

(a) it causes ecological and environmental damage and; 

(b) it does not help in the control of bushfires.

A more recent addition to the armoury of the anti-burners is the preposterous idea (dreamed up by a Curtin University academic) that if eucalypt forests are left long unburnt, they become non-flammable.

Urban environmentalists have embraced this nonsense and are constantly being pushed at the public by a compliant, incurious and all too susceptible media.

Those who advocate the Emergency Response Only approach promote an outdated, failed strategy.

Nowhere in bushfire-prone areas anywhere in the world has this approach worked.

It failed in south-west Western Australia, culminating in the 1961 fires; it failed in south-eastern Australia, culminating in the devastating Black Saturday and Black Summer fires; and it is failing (again) as we speak in Canada and the US, where astronomical resources (by our standards) can be thrown at bushfires.

It will inevitably fail again in eastern Australia sometime in the next few years as bushfire fuels build up again in the areas burned in Black Summer, and nothing is done to reduce them.

None of the arguments against prescribed burning stack up in the face, either of science or experience.

On the contrary. Biodiversity and the environment are better protected by mild controlled fires than intense uncontrolled wildfires.

There is no experienced firefighter anywhere in the world who does not understand that it is easier, safer and cheaper to control bushfires in light rather than in heavy fuels.

Far from becoming non-flammable, karri forest left unburnt for nearly a century, carries massive tonnages of combustible fuels.

Unfortunately, this experience does not trump the ideology of the green academics and activists who are calling the shots on bushfire policy in Australia’s eastern states.

This depressing situation is leading many bushfire specialists of my generation to consider slashing their wrists in despair.

“Let the bastards burn if that’s the way they want to play it” is a comment I heard from one of Australia’s most distinguished bushfire scientists, sick to the core of how the authorities in Victoria and NSW are deliberately setting up rural people and environments for destruction.

I am frequently asked if I can explain the madness of governments and professional bureaucracies that promote a failing bushfire strategy and blatantly ignore the lessons of history.

I cannot explain it.

The only thing I can do is relate the good news story from Western Australia, one corner of the continent where there is a firm commitment by the government to invest in effective preparedness and mitigation as well as in emergency response.

The WA approach is not perfect, but it is thought through and supported by good science.

Our political leaders and professional bushfire managers’ hearts and minds are in the right place.

The consequences of action and inaction are understood.

The bushfire authorities accept that they are accountable for bushfire outcomes.

I can Illustrate this by discussing four items of significance from the Western Australian scene, all of which have gladdened the hearts of those concerned about bushfires.

These demonstrate that, in the bushfire situation, at least, not all governments or agencies in Australia are stupid. 

First, agency policy and philosophy have evolved and matured

WA’s public land management agency, the Department of Biodiversity, Conservation and Attractions (DBCA) and our Department of Fire and Emergency Services (DFES) are both committed to bushfire mitigation, including an annual program of prescribed fuel reduction burning in south-west forests.

This program is well-managed and designed to maximise bushfire control and biodiversity benefits.

About 8% of the forest area is burned annually under selected conditions.

This was not always the case, but after serious bushfires in 2015 and 2016, the penny dropped.

Departments were reorganised, and new appointments were made.

Senior staff in both agencies now promote a sound policy based on good science, sensible philosophy and the primacy of human lives.

They preach and practice the two fundamental truisms: prevention is better than cure, and if you don’t get your bushfire management right, no other management objective can be achieved.

The thing about strong agency leadership is that it tends to be accompanied by, indeed, lead to strong political leadership.

This relationship is also apparent in the WA bushfire scene at present.

Second, regarding bushfire management, WA is currently enjoying strong political leadership.

There is bilateral political support for the bushfire mitigation and the burning programs in WA, and senior government figures are prepared to come out and say so.

The former Premier Mark McGowan clearly understood the value of bushfire mitigation, and this flowed on to the two ministers with bushfire responsibilities, Stephen Dawson (Emergency Services) and Reece Whitby (Environment).

Dawson has been unequivocal in resourcing the burning program and publicly supporting the program and the departmental staff; the bushfire community in WA regard him as a hero.

Whitby, on the other hand, has been luke-warm, but out of the blue, recently made this statement on ABC’s 7.30 Report:

The WA government maintains that while imperfect, controlled burning is the state’s best defence against more intense and devastating wildfires, which would threaten both lives and biodiversity.”

“Prescribed burning is the primary means of protecting the community and environment from the devastating impacts of large bushfires.”

“The use of prescribed burning reduces combustible fuel and works to protect wildlife habitat and plants from intense summer bushfires.”

This is a highly significant statement.

Whitby has been under sustained pressure from anti-burning academics and environmental activists to curtail the fuel reduction burning program, and he has also felt the sting of the left wing of the ALP, which generally promotes the green agenda regarding environmental issues.

If Whitby now supported the anti-burners, he would need to make a 180-degree volte-face.

Overnight 180-degree policy changes are not unheard of in WA politics, but some politicians can more easily carry this off than others.

Whitby knows that if he sides with the activists on the issue of fuel reduction burning, he will lose the support of his department, the Fire and Emergency Service, and every bushfire scientist and volunteer firefighter in Western Australia.

He will be exposed as putting politics and personal ambition before protecting the lives of Western Australians and their environment and assets.

Minister Dawson has no such concerns.

To his credit, he has again publicly affirmed his support.

In a recent (June 30, 2023) letter to the Bushfire Front. He wrote:

“I can assure you that the Cook Labor government remains committed to bushfire mitigation, including a planned burning program in the south-west forests … we will continue to prioritise the safety and well-being of our community while working towards effective and sustainable bushfire risk management strategies. The state government is also committed to evidence-based approaches to bushfire risk management to support the continual improvement of planned burning policies and practices. We do this by drawing upon the knowledge of experts in the field, scientific research, and the invaluable experience of our firefighting personnel”.

WA Minister for Emergency Services, The Hon. Stephen Dawson MLC

This is also a significant statement.

Firstly, it is in writing.

Secondly, it emphatically shows that the minister values the knowledge and experience of people in the field and firefighters over the opinions and ideology of urban environmentalists and green academics.

They criticise the current approach from a position of zero bushfire experience and with the luxury of never being accountable for bushfire outcomes.

Thirdly, it calls for a parliamentary inquiry into the fuel-reduction burning program

Activists petitioned to review the prescribed burning program

In 2021 environmental activists in WA signed a petition to Parliament, calling for a major review of DBCA’s prescribed burning program.

The way this was worded and organised made it clear that “a review” would be merely the first step.

The petitioners expected that a review (which would be carried out by green academics) would demonstrate the environmental horrors and futility of the burning program, and this, in turn, would lead to its curtailment.

The petition, which was heavily publicised but gathered only 1710 signatures, was referred to the WA parliament’s Standing Committee on the Environment and Public Affairs, which comprises MPs from all major parties.

The committee took the issue seriously and arranged to receive submissions and to be briefed by the major stakeholders.

The two main environmental groups – the Leeuwin Group (basically green academics) and the Fire and Biodiversity group (basically green activists) – presented to the committee and backed these with substantial submissions.

Senior officers from both DBCA and DFES were powerful advocates for the prescribed burning program, and they backed their position with real data on burning impacts and benefits.

The Bushfire Front, which also strongly supports the prescribed burning program, was not invited by the committee to present.

However, after we contacted them, we were invited to make a written submission.

The committee finally released its report in June 2023. They said:

“Prescribed burning as a bushfire mitigation method has received bipartisan political support for many years. Correspondence received by the committee from ministers relating to this petition and a previous one illustrates the views of the previous government and the current one. In 2019, the government reinforced its support for the program by announcing a $22 million funding boost to DBCA’s prescribed burning program over four years, in addition to the already allocated $11 million for the south-west of the state”.

June 2023 WA Government report into DBCA prescribed burning

Further, the committee reported that it was satisfied with the expertise of DBCA staff in carrying out the burning program.

Although improvements could be made (especially in public education), they were also satisfied that DBCA was aware of the need for these improvements and had active programs to achieve them.

Finally, they concluded:

“The committee does not recommend to the government that it commission an independent review of the DBCA’s prescribed burning practices … the commissioning of an independent review of {the department’s] prescribed burning practices is not considered necessary.”

This represents a total repudiation of the petitioners and their strategy.

It is also a strong statement of support for DBCA and its bushfire science and management personnel.

It also spells the end of the usefulness of petitions to Parliament as an effective way to change government policy on bushfire management.

Finally, the statement of its bushfire vision, principles and intent.

The fourth major item of significance in Western Australian bushfire affairs is the recent release by the government of two major statements.

The first sets out a vision and basic principles about bushfires, and the second is the government’s intent concerning bushfire management.

These are both landmark documents; no Western Australian government had previously published anything as comprehensive, sound and unambiguous.

I will not fully reproduce them here (they can be read via this link), but I will summarise the most important points.

At the outset, the vision statement acknowledges that “Bushfire and smoke are a natural part of the Australian landscape”, thus putting to bed the idea that bushfires are unnatural and foreign to our environment.

The report says that bushfires must be successfully managed to protect people, their environment, and assets.

This effectively puts to bed the notion (promoted by many greens) that bushfire management is interfering with the natural world and that Mother Nature should be left in charge.

Thus, the vision statement provides a real-world context for outlining management principles.

Of the eight principles laid down, the three most important (in my eyes) are:

  • When it comes to bushfire management, the safety and well-being of people must come first.
  • To minimise the potential impact of bushfires on people, property and the environment, bushfire fuels must be managed.
  • Bushfire management is informed by learning, research and innovation.

These principles establish the fundamentals of good bushfire management, viz, priorities are set (human life and mitigation), and the importance of research and learned experience is highlighted.

The Statement of Intent is also a sound document.

It covers bushfire managers’ four main areas of interest: preparing for fire, firefighting and survival, post-fire recovery and improving knowledge/experience.

I particularly liked this:

“Managing fuel loads is essential to prevent bushfires from getting out of control and to minimise the impact of them on the Western Australian community, industry and environment.”

“Fuel loads need to be managed in an environmentally appropriate manner and must consider the local context (i.e. population, terrain, vegetation types) to select the most appropriate management tools.

“In Western Australia, planned burning is used as the primary tool to reduce fuel loads and the threat of severe bushfires.”

“Planned burning is also used to maintain or improve biodiversity, protect cultural values, and manage agricultural production.”

“Carrying out planned burning operations also contributes to building the on-ground expertise of the state’s bushfire response personnel”.

Australia is in an era of incompetent and failing bushfire management

The approach adopted by governments and land and fire agencies (NSW and Victoria, in particular) is deeply unprofessional and will inevitably result in new bushfire disasters in the years ahead.

To rely on Emergency Response is to rely on something that can never work when needed most: when there are multiple ignitions in heavy fuels on a day of extreme fire weather, at the end of a drought.

This is not an imaginary scenario but a set of probabilities that will occur once or twice nearly every few summers somewhere in the country.

When the next cycle of nasty fires occurs in Australia, the cry will go up, “It’s all due to climate change”, but I am not sure how long this excuse for incompetence can be sustained.

Increased forest fire is commonly linked to climate change by scientists. Footage courtesy of @WION

Eventually, someone will want evidence of how the climate has changed to produce such dramatically horrible outcomes.

For another, people will want to know why climate change has not caused similar disasters in Western Australia.

Furthermore, every bushfire scientist and manager in the land must know about “the bushfire behaviour triangle”, which demonstrates that (once you have ignition) the behaviour of a fire is a product of weather, fuels and topography.

The merest study of history will reveal that the Australian bushland has experienced droughts, severe fire weather and bushfires across millennia.

Any increase in the frequency of extreme fire weather due to climate change or climate cycles, regardless of the cause, can only be counteracted by focusing management efforts on fuels. Nobody can control the weather or alter topography.

According to an article featured in The Conversation, North American forests are burning a lot less now than they were 150 years ago. Burned forest landscape in 2010 in the Radisson region (northern Quebec). (Guillaume Avajon), Fourni par l’auteur

Yes, the situation in WA is infinitely better (if still imperfect), especially in the south-west national parks and state forests, where the government’s policy and approach are commendable and where active management to mitigate bushfire damage is being taken.

The agencies are doing their best, and their philosophy and strategies are on the mark.

There will certainly be a bad fire or two in the years ahead because mitigation work is still grossly underfunded, especially in the Karri forest.

Indeed, the bushfire management capacity of DBCA is going backwards. Moreover, we are not immune to the malevolent influence of those opposed to responsible bushfire management.

The Green academics and urban environmentalists continue to put powerful political pressure on the government and left-leaning MPs, and they know who to target. This pressure has been resisted to date, but the ebb and flow of politics is hard to predict.

Outside of Crown land, the bushfire situation on private property remains dire. There is no effective force compelling landowners to prepare for fire, and most local government authorities (whose responsibility this is) are unwilling to become enforcers or are too risk-averse to undertake fuel reduction.

Nearly all of the most damaging fires in recent times in WA have started on or burned predominantly through private property. While I welcome the publication of the government’s ‘Vision, Principles’ and Intent, and I cannot fault them, the question remains whether they will be translated into practical bushfire management on the ground on privately owned land.

A final thought on the Canadian bushfires. One of the things most often criticised about fuel reduction burning is that it generates smoke, which is claimed to harm some people’s health and contributes to global warming.

The smoke from the Canadian bushfires blanketed the entire north-east of the USA for weeks and even reached Europe. Smoke is an inevitable consequence of fire, but the smoke from a mild-intensity prescribed burn is light and ephemeral. It can be managed to minimise the risk of smoking in major population centres.

But the reverse is the case for wildfire smoke, another key factor supporting programs that make wildfire control quicker and easier.

  • Extracts from an article which originally appeared in The Quadrant.
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