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Bushfire - Australia

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Old Thursday 9th January 2020, 02:42   #51
Chosun Juan
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Quote:
Originally Posted by PYRTLE View Post
What then, constitutes a " deliberately lit bushfire "? Is it lighting a camp fire or actually setting fire to the undergrowth ( grass, shrubs and trees )?
My understanding is that "a deliberately lit bushfire" is arson - this according to the article I posted in the OP constitutes ~13% of all fires. A further ~37% are classed as suspicious - ie. more than likely deliberate arson that is not totally provable. Disobeying Total Fire Bans by lighting a campfire that doesn't cause a bushfire for example will see you charged (but not with arson).

Further to that ~33% on top of that half already of all fires deliberately lit/suspicious, are accidently caused by man /man-made infrastructure /equipment.

There is an addition to the very small percentage (~6%) of fires started by lightning, and that is when these fires reach conflagration stage in catastrophic fire conditions (a fire rating of 100 or more - this season has seen ratings of 200 ! ) , that they create their own weather. Pyro-cumulonimbus clouds reach so high that they create their own dry lightning storms which can start further fires. Multiple spot fires can be thrown kilometers ahead of the firefront and not necessarily in the direction of prevailing winds. Fire tornadoes, and tornado-like downdraughts are also created. It was one of these that generated winds at ground level so strong as to flip a 8-10 ton firetruck over killing occupants inside.





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Old Thursday 9th January 2020, 02:48   #52
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Exclamation Fire chiefs demand Royal Commission into Bushfire Crisis

Any Royal Commission into this crisis must also include a Royal Commission into water use and over-extraction and destruction of hydrology throughout the whole country ...... imho, and that's just the start ....

https://www.sbs.com.au/nitv/article/...tcv5MiKxj4FQlg




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Old Thursday 9th January 2020, 03:40   #53
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Wink Thoughts of Healing ......

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https://m.facebook.com/story.php?sto...cus_composer=0




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Old Friday 10th January 2020, 08:05   #54
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Originally Posted by John Cantelo View Post
As an aside, this disaster has reminded me of the woeful geographical grasp of many Brits. I'm up in Queensland (nr Cairns) but still getting concerned messages from (some) friends asking if I'm OK and whether the fires are close by.
Not everyone is lucky enough to have travelled as we have and it's certainly not a flaw unique to Brits.

Perhaps their error was down to this......

https://www.politifact.com/facebook-...-misrepresent/
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Old Friday 10th January 2020, 09:14   #55
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Thank you CJ for your reply to my query.

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Old Friday 10th January 2020, 10:26   #56
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Exclamation

Quote:
Originally Posted by PYRTLE View Post
Thank you CJ for your reply to my query.

P
I have to confess that I have my 'suspicions' about quite a lot of this 'crisis'. I suspect that some of it is 'manufactured'.

I cannot stand watching the news:
Rolling coverage
File footage everywhere
Armageddon like background wallpapers behind newsreaders
Mindless opinion replayed over and over
Junior reporters on the scene without facts, saying I think this, I think that, it looks like this, it looks like that - who the f cares !
Fear mongering - there were some brief showers that came through the South-east corner (admittedly not enough to put the fires out) and instead of saying hallelujah ! the news was blanketed with messaging saying what a huge problem it was.

The people that seem happiest to volunteer their services are bulldozer operators !

The hot dry lightning storm that passed over Sydney about 48 hours ago apparently sparked a fire deep in the Blue Mountains west of Sydney (one of the few unburnt areas remaining). The next day was a very mild ~ 23C with only up to gentle breezes ...... why the heck wasn't this nascent fire water bombed out of existence ?!! Even earlier today it was listed as a mere 1 hectare in size, and yet now this evening it is listed as out of control - with a strong Southerly wind change expected in the wee hours overnight.

All this, and yet the Fire and Emergency Services say they have every resource necessary ........

DING DING !!!





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Old Saturday 11th January 2020, 21:28   #57
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Very annoying that we can't get an official map of areas burnt /burning in Australia in total (you have to piece the state pictures together). It looks like the total area is now equivalent to over 80% of England burnt ......

At least the lightning started small fire in the Northern Blue Mountains is under control. Larger ones are still not fully controlled.

Interesting questions raised in this article:
"Hunter, hunted: when the world catches on fire, how do predators respond?"
https://theconversation.com/hunter-h...respond-126280
Hopefully the Wedgies can polish off more than just a few foxes.



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Old Saturday 11th January 2020, 22:05   #58
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Quote:
Originally Posted by andyadcock View Post
Not everyone is lucky enough to have travelled as we have and it's certainly not a flaw unique to Brits.

Perhaps their error was down to this......

https://www.politifact.com/facebook-...-misrepresent/
No, it's not a flaw unique to Brits but you don't have to travel to have a decent grasp of geography since we have handy things called atlases. I knew where Queensland was (and Cairns for that matter) decades before I ever visited either.
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Old Sunday 12th January 2020, 11:25   #59
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Quote:
Originally Posted by John Cantelo View Post
No, it's not a flaw unique to Brits but you don't have to travel to have a decent grasp of geography since we have handy things called atlases. I knew where Queensland was (and Cairns for that matter) decades before I ever visited either.
I think people like us are odd John to be honest, I've always loved maps anyway.

Try asking the average Portuguese or Russian where Sheffield is on a map or ask an average American to point to the UK. I saw something where they stopped Americans in the street and asked them questions on Geography. The clear winner was a ten year old boy, the rest couldn't even point to the continents and I'll bet it's the same in the UK.

I'll bet I could ask any of my neighbours to point out continents on a blank map and 90% would be wrong. Even those that holiday in e.g Spain, would struggle to point to it on a map.
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Old Monday 13th January 2020, 02:32   #60
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Thumbs up Thining, Clearing, Backburning is NOT the answer .....

Amid this crisis both scared frightened people, and a veritable cavalcade of rednecks and loudmouths alike are calling for more clearing, more back burning.

The RFS Commissioner himself, Shane Fitzsimmons has said that more back burning would not have prevented the fires we have seen. Research and Indigenous wisdom is the way to proceed.

Here is an excellent interview with Professor David Lindenmayer who has been an Ecology, forest and threatened species researcher and expert for decades. https://en.m.wikipedia.org/wiki/David_Lindenmayer

Jump to 12:45mins to start with the background and then interview.
https://www.abc.net.au/radio/program...RZQ72tkf7-ZK24

Moisture in the land is the key.



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Last edited by Chosun Juan : Monday 13th January 2020 at 02:36. Reason: Professor David Lindenmayer bio link
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Old Monday 13th January 2020, 03:53   #61
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Wildlife survival strategies

Still so much to learn ......

https://mobile.abc.net.au/news/2020-...8GpJskaPHWgkNI




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Old Monday 13th January 2020, 06:22   #62
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Thumbs up Australia Fires: Aboriginal planners say the bush 'needs to burn'

https://www.google.com.au/amp/s/www....ralia-51043828

Personally I think we can do so much better than now.

By combining Aboriginal wisdom and practice with the science of pyrolytic combustion, and either grazing or mechanical slashing, and composting, I think we can minimize CO2 and heat emissions, add much more charcoal, carbon and fertility to the soil, while still supplying some ash and nutrients. I think that along with NSF and Regenerative Agriculture practices this could put orders more moisture back into the soil, and daily transpiration cycle. Thereby minimizing the catastrophic fire conditions we have seen, while significantly enhancing environmental mosaics, connectivity, and biodiversity.





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Old Tuesday 14th January 2020, 11:46   #63
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Exclamation The sweet relief of rain after bushfires threatens disaster for our*rivers

With rain storms expected leading into this weekend - erosion mitigation works on decimated fire grounds are critical.
https://m.facebook.com/story.php?sto...cus_composer=0






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Old Tuesday 14th January 2020, 11:51   #64
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Lightbulb An important message from Gary Nairn, CEO, The Mulloon Institute

NSF techniques can play important roles in both the repair, AND prevention of Bushfire damage ...
https://m.facebook.com/story.php?sto...cus_composer=0




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Old Tuesday 14th January 2020, 12:11   #65
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Lightbulb Cool burn - barefoot test ....

This is the 'barefoot test' of a cultural 'Cool Burn'
https://m.facebook.com/story.php?sto...cus_composer=0

I believe we can even go further with even slower, more deoxygenated, cooler, 'pyrolitic' burns which will increase carbon matter in the soil. Difficult to do on usual contractor time and $ constraints - so probably needs something more like a permanent team of custodians of country



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Old Tuesday 14th January 2020, 13:32   #66
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Exclamation Biological reduction of 'fuel'

What we want is 'fuel' - the accumulated litter (bark, leaves, twigs, dead shrubs, etc) to be broken down biologically - animals, composting, fungi, etc.

This can only be achieved by fully functioning rehydrated ecosystems. These articles really get to the crux of the matter.
https://m.facebook.com/story.php?sto...cus_composer=0
https://www.commondreams.org/views/2...9xsjsw2z-9yjiY




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Old Tuesday 14th January 2020, 15:49   #67
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Exclamation 18.6 Million square kilometres burnt and counting .....

It seems that someone forgot to ask the Northern Territory the area that had burnt this season ...... well an area about the size of Ireland .....

This brings the total area burnt thusfar (there are still fires out of control) to over 18.6 Million Hectares .... that's an area the size of all of England, Wales, Northern Ireland, the Isle of Man, the Isle of Wight, plus about a quarter of Scotland .......

https://en.m.wikipedia.org/wiki/2019...ushfire_season






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Old Tuesday 14th January 2020, 15:53   #68
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Cool Wildfires are getting worse: Time to Rehydrate Our Landscapes

Rehydration the landscape is the only thing that will save us ....

https://www.commondreams.org/views/2...9xsjsw2z-9yjiY




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Old Tuesday 14th January 2020, 17:38   #69
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Ladies and gentlemen, please stay on topic. No need to take swipes at each other.
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Old Wednesday 15th January 2020, 09:41   #70
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Smile Great News - Hopefully !

.
Incredible, secret firefighting mission saves famous 'dinosaur trees'
https://m.facebook.com/story.php?sto...cus_composer=0
https://www.smh.com.au/environment/c...TyFCM20rnp7tB8

Hopefully the Wollemi Pines will pull through this ordeal, the decimated surrounds, and the hot dry weather now, and to come, without any adverse effects.







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Last edited by Chosun Juan : Wednesday 15th January 2020 at 09:49. Reason: Lynx :) Sydney Morning Herald should be subscription free for bushfire coverage.
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Old Wednesday 15th January 2020, 11:23   #71
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Unhappy The sheer number of animals killed could collapse entire ecosystems ...

https://www.sbs.com.au/news/the-shee...ire-ecosystems
"Ecosystems that rely on many parts working together could collapse"

There are almost 2000 threatened species and ecosystems already in Australia ..... after these fires many more are expected to be added to the list. Even many animals that survived the bushfires are expected to perish - by starvation, or by being eaten. Feral Cats and Foxes are expected to be comparative winners.

The estimate of 1 billion animals killed, does not even include untold numbers of insects, amphibians, bats, etc, nor crucial things like soil biota - which will have been decimated by the intensity of the hot fires.





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Old Wednesday 15th January 2020, 11:54   #72
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Unhappy Threatened Species pushed closer to extinction

https://www.australiangeographic.com...xzKBCt0_5t2DFA

Many birds perish in the fire because they are disorientated by the smoke, overrun, and unable to combat the strong winds generated, etc.

"Many Australian animal species, particularly threatened birds, favour long-unburnt vegetation because these provide more complex vegetation structure and hollows. Such habitat is fast disappearing."







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Old Thursday 16th January 2020, 06:34   #73
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Lightbulb Bushfires Are 'Obliterating The Cultural Memory' Of Indigenous Australians

https://www.gizmodo.com.au/2020/01/b...Fk1XBK4wkwcRVA

Good article on the impact of the fires on cultural heritage - loss of scarred trees, etc, and other sacred sites, but also a nice detailed explanation of cultural burning practices in the context of lore, and their effectiveness.





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Old Thursday 16th January 2020, 06:53   #74
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Unhappy Calls for an 'all-out attack' on feral plants and animals as native species struggle

https://www.sbs.com.au/nitv/article/...T_D_NzTIc8_byg

"The feral animals are going to get the upper hand because they come from other countries; our native species haven't evolved to adapt to them.

"They're decimating the wildlife in normal times, but during these bushfires -- They get even a greater edge," Mr Cox said.

"So they certainly will decimate the native animals. They'll eat them, there'll be lots of suffering, and native animals need every hope they can get."


"At least hundreds of millions"
"On Monday, the federal government announced an initial $50 million investment would go to protect wildlife and restore habitat in response to the bushfire crisis.

While the Threatened Species Commissioner will manage half of that money, Mr Cox says it won't be nearly enough, estimating 'at least hundreds of millions.'

"The scale of the needed effort is far, far bigger than we could imagine.







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Old Thursday 16th January 2020, 13:33   #75
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The inconvenient facts on Australia's bushfires

https://www.google.com.au/amp/s/www....bushfires/amp/

I don't really want to get into the nonsense of climate politics and the way that every celebrity and their dog have been jumping on these fires to push their own barrow. If we don't get to the true root causes then any solution will prove elusive. Some of these causes have yet to have widespread scientific research catch up to them. Some of the knowledge is esoteric - held by a culture that is actively suppressed in order to perpetuate the ongoing theft of land.

A curious article which really doesn't even mention many of the main factors responsible. A recent study found that climate change was not a factor.
https://agupubs.onlinelibrary.wiley....9/2018GL080959
Curiously, this same author found that it was a factor in the Amazon fires - rather incredulous when they were clearly as a result of a land grab. Multiple deliberately lit fires were merely the tool of this 'illegal' activity.

Logging, clearing, and the proliferation of dense shrubby regrowth that occurs is however a cause. As is the 'theft' of the country's water, the resultant destruction of wetlands and the moist soil sponge, and as is the erosion caused, and drying of the land. The other big factor is creeping urbanisation and the exponential growth of edge effects. These are not things I'm seeing reported very much at all.





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