meta_pixel
Tapesearch Logo
Log in
The John Batchelor Show

28: 2. The Science of Fire and Response Organization in Australia. This section addresses the science of what burns and the organization of fire response in Australia. The Australian landscape contains fire-adapted plants. Eucalyptus trees are highly flammab

The John Batchelor Show

John Batchelor

News, Books, Society & Culture, Arts

4.52.8K Ratings

🗓️ 26 October 2025

⏱️ 7 minutes

🧾️ Download transcript

Summary

2. The Science of Fire and Response Organization in Australia. This section addresses the science of what burns and the organization of fire response in Australia. The Australian landscape contains fire-adapted plants. Eucalyptus trees are highly flammable due to their oil content, burning quickly. Mountain Ash is the largest species of eucalyptus in the world. While many eucalypts regenerate after fire, Mountain Ash actually dies after a fierce blaze but releases a huge load of seed, requiring sun to regenerate. Naturally, Mountain Ash fires are notoriously fierce and occur only every two or three hundred years. Fires are caused by lightning, power lines, and arson. Although arson is frequent, the resulting fires are often less dangerous than those caused by lightning or electrical faults, as some arsonists light fires for attention. Regarding fuel, while some believe certain weeds like pittosporum might be fireproof, ultimately, everything burns under the right conditions. A well-watered pittosporum hedge, however, could protect a home from ember attack. H. G. Wells is quoted in the book, describing fire as a "gorilla" that is opportunistic with sparks flying. In terms of response, fire brigades originated with insurance companies in the late 19th century, focusing on protecting buildings in townships. Rural communities, left unprotected, established their own parallel volunteer bushfire brigades (the first being in Berrigan in 1901). Following the enormous 1939 fires in Victoria, the government began funding and organizing state bodies to support these brigades.
1885 SOUTH AUSTRALIA

Transcript

Click on a timestamp to play from that location

0:00.0

I'm John, that's what Daniel Kloat. The book is A Future in Flames, the story of bushfires

0:07.7

in Australia, but the story of bushfires everywhere, if you consider the threat to arable land,

0:14.2

to people, to wildlife, to ecosystems, and yet not a threat, because it, as as we've established it is part of a

0:23.6

continent a part of nature we come now to the question of what burns in my conversation

0:30.6

with you about the koala I learned that eucalyptus is a torch when it's hit by fire because of the eucalyptus oil and burns very quickly

0:42.0

and then blows through there's another tree that also you write about the mountain ash

0:47.5

and that tree the ash forests of australia both the eucalyptus and the Mount Nash regenerate very quickly

0:56.5

is that correct Danielle yeah so mountain ash is a eucalypt as well it's it's

1:02.1

actually the largest of all the eucalypts and the largest hardwood in the in the

1:06.6

world it's as tall if if not possibly taller in the past than the redwoods

1:12.6

California and the eucalypts are what we call a fire adapted group of plants so they're drought

1:22.0

adapted and those drought adaptations have happened to have made them resilient in that generally

1:27.4

in the face of fire.

1:28.5

So they regenerate after fire.

1:31.8

There's a lot of deaths, but there's also majority usually survive fires.

1:37.7

Mountain Ash has an interesting history because it actually does die after fire,

1:42.0

but it releases a huge load of seed into the forest.

1:46.0

And it needs a lot of sun to regenerate.

1:48.0

So in the aftermath of a fierce fire, a very, very fierce fire,

1:52.0

and Mount Nash fires are notoriously fierce.

1:55.0

They only happen every two or three hundred years naturally.

1:59.0

And the forest burn really fiercely and then the cleared areas

...

Please login to see the full transcript.

Disclaimer: The podcast and artwork embedded on this page are from John Batchelor, and are the property of its owner and not affiliated with or endorsed by Tapesearch.

Generated transcripts are the property of John Batchelor and are distributed freely under the Fair Use doctrine. Transcripts generated by Tapesearch are not guaranteed to be accurate.

Copyright © Tapesearch 2026.