Extreme weather reminds us of Black Summer

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Photo: View from our veranda, Yangan November 2019 (see after photo below). BW

As Australia Day passes by, is it safe yet to say the eastern seaboard of Australia has dodged a ‘Black Summer’ in 21/22? This typically runs from December to May in most parts of Australia. Too soon?

The 2020-2021 bushfire season so far is relatively subdued due to the effects of La Nina and the wet winter and spring it brought in many parts of Australia.

We’ve seen some freaky weather, though, including heat-waves, a cyclone and hail storms. Reports of bush fires from far away Western Australia this month may have sparked anxiety in those who suffered through Black Summer in 2019.

The WA coastal town of Onslow sweltered through a 50.7C day this month, equalling a 62-year-old record set in Oodnadatta. The ABC observed that if confirmed, this will be only the fourth day over 50C for an Australian location since reliable observations began.

It is apparent that climate change will rank among the top three issues debated in the upcoming Federal election.

There is concern at the top end of town, with a survey by Deloitte’s revealing that 77% of business executives think the world is at a “tipping point”. The global survey found that businesses are starting to take action, but the level of action often doesn’t match the scale and urgency of business and moral concerns expressed in the survey.

Whatever we as individuals think about how the Federal Government is handling climate change policy, the world has already judged us.

Australia’s latest climate policies are failing to “take advantage of its potential” and it ranks last among nations surveyed, according to the 2022 Climate Change Performance Index (CCPI).

Advocacy group Germanwatch ranks the performance of 63 nations and the European Union on each country’s progress working towards goals in the Paris Agreement.

Australia slipped from 54th place overall to 59th, well below other developed countries. Australia was rated last on the climate policy table (64th), the worst of the bottom 15 countries rated as “very poor”.

“The (Australian) government does not have any policies on phasing out coal or gas, but CCUS (carbon capture, utilisation and storage) and hydrogen are being promoted as low-emissions technologies,” the report said.

Experts consulting to the report said Australia’s international standing has been damaged by climate denialism by politicians. A “lack of ambition” and refusal to recommit to international green finance mechanisms. https://ccpi.org/

The Climate Council’s extreme Weather Communication Guide, available in 10 different languages, explains how cyclones, flooding, bush fires, heat waves, and poor air quality are being supercharged by climate change.

The Climate Council’s Nathan Hart said Australians were already paying the price for more frequent and severe extreme weather.

He cited floods in Maryborough, QLD, and the Top End, fuelled by ex-tropical cyclone Tiffany.

The independent, not-for-profit Climate Council was launched not long after incoming Prime Minister Tony Abbott scrapped the Australian Climate Commission in September 2013.

The Climate Council’s chief councillor is Professor Tim Flannery, who also chaired the ACC. Prof Flannery and Climate Council councillor Greg Mullins (former Commissioner, Fire and Rescue NSW) are the faces behind an award-winning documentary, Burning.

The climate change documentary was first shown at the COP26 conference in Glasgow and was released on Prime Video and distributed to 260 countries.

The documentary about Australia’s devastating Black Summer was directed by Australian film-maker Eva Orner. The film recaps the Black Summer bush fires that scorched Australia in 2019-20. More than 450 Australians were killed, either directly by the fires or from the toxic air that covered three of Australia’s major cities for weeks. The fires burnt over 18 million hectares, destroyed 3,113 homes and killed 3 billion animals. Former Fire Commissioner Greg Mullins features in the film.

I’ve never seen fires like it and I hope I never will again,” he said. “Sadly though, we are going to see more Black Summers – and even worse. Despite the extreme danger we face, the federal government refuses to ramp up emissions cuts this decade or to embrace Australia’s incredible renewable potential.

“Not long after the flames had settled, the COVID-19 pandemic rolled in and the world moved on. But for survivors, fire-fighters, business owners and mental health workers, the road to recovery was only just beginning.”

In some small way we count ourselves among the millions of Australians who suffered  physical and mental anguish during the Black Summer fires.

I recall going to see a GP in late 2019 about some unrelated complaint. He scrolled through my records and asked if my asthma was worse than usual. A Monash University study found there were 6% more weekly emergency department presentations for respiratory disease and 10% more cardiovascular presentations compared to the previous two fire seasons. The study was the first to look at the impact of bush fires on actual ED attendance numbers.

In Australia, during the 2019-20 season, the density of particulate matter in the air peaked on 14 January – at fourteen times more than the historically highest level previously recorded. According to Monash’s Professor Yuming Guo, it is known that PM1.0, PM 2.5 – the two most common particle-sized matter in smoke – can cause respiratory disease, chronic obstructive disease, pulmonary disease and asthma.

The results indicate that the unprecedented bush fires led to a huge health burden, showing a higher risk in regions with lower socio-economic areas and more bush fires,” Professor Guo said.

Hence my GP asking about asthma. At the time we were living at Yangan, 18 kms from Warwick in the foothills of the Dividing Range. Long-burning bush fires in the hills shrouded the valley in smoke most days. On occasions, it was so bad it drifted into town (Warwick). Asthma aside, the constant pall of smoke, the visible fires (at night) and the unpredictability of bush fires made us anxious.

The University of Western Australia conducted a survey of professional and volunteer fire-fighters after Black Summer which reveals the extent of mental anguish among those who battled the blazes.

The survey identified a third of volunteers and a quarter of employees had felt there was a time when their life was threatened by the fires. Some 4.6% of volunteers and 5.5% of employees had since shown very high psychological distress indicative of serious mental illness.

A study published last October found the physical and mental impacts of exposure to smoke from the black summer fires was likely greatly underestimated by official health statistics.

Prof Iain Walker of the Australian National University surveyed 2,084 adults affected by the bush fires close to Canberra.

“Virtually all of them – 97% – said they had experienced at least one physical symptom attributed to the smoke. Half of respondents reported symptoms of anxiety and depression, as well as sleep loss.

“Only one in five people sought medical attention for their symptoms, suggesting the breadth of health impacts was far greater than the number of cases officially recognised by the health system,” Walker said.

“A much wider segment of the population was exposed to bushfire smoke than bush fires directly.”

Yes, and how we still remember that late afternoon in 2019 singing Christmas carols in Warwick’s main intersection. A sudden change of wind brought clouds of bushfire smoke rolling into town like a London fog. We all ran for our cars, forced to put the lights on to drive home.

But then, after some rain…

FOMM back pages

Native forests recover from bushfires

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Blackdown Tableland National Park, September 2020

We were at least one kilometre into a bush walk at Blackdown Tableland National Park in central Queensland before realising it was recovering from a bushfire. Such is the extent of regrowth since September 2018, it is only when you see trees that have been completely hollowed out by fire that you become aware.

She Who Bush Walks pointed out what she called ‘epicormic growth’ which is what occurs when buds buried beneath the bark of a burned tree burst into life.

You might recall hearing about this particular fire, two years ago to the day, when eleven tourists became trapped at the park’s feature attraction, Rainbow Falls. A fire and rescue worker was winched down from a helicopter to take charge of the eight adults and three children and lead them to safety.

At the time, fire was also raging 300kms away in Carnarvon Gorge National Park, which from all reports has also bounced back from the ravages of fire.

When fire burns out a patch of bush, it is not the ecological disaster it may at first seem. Fire burns plant material above the ground surface, which clears the way for new growth once the ground has cooled and there is follow-up rain.

According to educational material prepared by the Tropical Savannas Cooperative Research Centre & Bushfire CRC, regrowth primarily comes from above-ground re-sprouting.

 While many trees are killed by total defoliation following a fire, some can re-sprout from epicormic buds, which are buds positioned beneath the bark. Eucalyptus trees are known for their ability to vegetatively regenerate branches along their trunks from buds.

Below-ground roots and underground stems can also survive because soil is a good insulator. Plants survive fires by re-sprouting from basal stems, roots and horizontal rhizomes”.

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Epicormic growth after bushfire

We explored several tracks in the park although after about 8 kms we did not have the energy to climb down to the rockpools (and back up again), fed by Rainbow Falls. The latter is popular with central Queensland residents and holiday makers, who can either camp in the park or travel from campgrounds and accommodation at nearby Dingo or Bluff. (above, epicormic growth).

The park ecology has certainly thrived since recent rainfall. Wildflowers were proliferating along the trails and it was great to see vigorous new growth climbing up the sides of burned trees.

We encountered a group of Aboriginal families, descended from the original inhabitants, exploring the culture trail with a couple of Rangers. A bluff at Blackdown Tableland is the site of a sandstone overhang, under which rock stencils are preserved

The traditional owners, the Gunghalin people, manage the 47,950ha Blackdown Tableland in a co-operative venture with the Queensland Parks and Wildlife Service. As part of this agreement, 70ha has been set aside as a conservation site for cultural purposes.

We chatted to an older woman on the cultural trail who explained why she was going ‘Cooee’ every now and then: “I’m letting the ancestors know I’m here,” she said.

Despite the progressive nature of this management agreement, I could not help but feel a twinge of white settler guilt when reading the history of the park.

Blackdown Tableland National Park was settled as a grazing homestead and perpetual lease property in 1869. Settler William Yaldwin named the tableland after the family home, Blackdown House, in Sussex, England. In more recent times, Blackdown Tableland was gazetted as a State forest and timber extraction site because of its store of valuable hardwood timbers. QPWS says most of the pastoral artefacts are being allowed to decay naturally into the landscape. Wildfires have caused damage to the cattle yards and fences at Mimosa Creek campground.

This week’s FOMM coincides with the first anniversary of the catastrophic ‘Black Summer’ bushfire season across six States and Territories.

The 2019-2020 bushfire season began as early as August in some states and at its worst in February had burned out 17 million hectares.

The statistics are confronting, so I apologise in advance to those directly affected for bringing this up again.

Across six months fire caused:

  • 33 deaths (including nine firefighters);
  • the loss of 3,094 homes;
  • 5,000 people to become homeless;
  • the loss of one billion native mammals, birds and reptiles;
  • More than 85% of the World Heritage Listed Blue Mountains reserve in NSW to be affected;
  • Fire damage in 153 parks and reserves, 55 of them suffering comprehensive damage;

The Bureau of Meteorology concluded that the fires were the largest by geographic area in modern times. About half of the fires were started by lighting strikes. The rest were said to be of ‘human origin’, the majority accidentally started.

In late September 2019, we left our home of 17 years in the Sunshine Coast hinterland for a new adventure on the Southern Downs. Our temporary home was a 1950s farm cottage at Yangan, 18 kms from Warwick, while waiting for settlement on the house we were buying in town.

Because of serial fires burning in the high country around Cunningham’s Gap and the surrounding areas, the whole valley was often blanketed in dense bushfire smoke. At night you could see the flames licking the tops of the hills. As the weather warmed through October and November we often had to keep the house closed up. Some days the smoke was so bad we could not go outdoors. The towns of Warwick and Stanthorpe were also affected by smoke.

The reprieve came in January with a solid day of rain, followed by heavier falls that topped up our new rainwater tank and partially replenished the town dams. We’re still on water restrictions though, despite a cumulative total of about 450mm for calender 2020.

A year on, after the public in general donated more than $500 million, many people left homeless by the Black Summer bushfires are still living in caravans and tents or sharing homes with friends and relatives.

Despite some decent winter rain, many parts of Australia are still in drought, with dozens of towns on water restrictions. Television news footage of wildfires in California’s Napa Valley this week will be provoking anxiety among survivors of last year’s bushfires.

The Bureau of Meteorology, meanwhile, is confidently forecasting La Nina weather conditions in 2020-2021, which means rain and more rain and an early wet season for the tropical north.

People in the bush, where droughts and bushfires are part of everyday life, tend to be stoic. But on our western journey, it became evident that 2020 has left its mark. COVID-19 restrictions have robbed the outback of its annual influx of tourists and much-needed revenue.

Let’s hope that workers, small businesses, farmers and bushfire victims in rural Australia are not forgotten in next week’s Federal Budget.

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