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Jennifer Marohasy

Jennifer Marohasy

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Roger Underwood

Bushfire Management in Australian Forests: A Note from Roger Underwood

October 22, 2013 By Roger Underwood

THERE is an old saying that one of the greatest of human failings is the inability to learn from the mistakes of others. One example is that of my 2-year old grandson who, despite being warned, could not resist testing the heat of the stove, and got his fingers burned. I have noted an identical situation in the attempts at bushfire management by Australia’s new generation of forest managers.

Yet while the new managers have suffered a lot of burned fingers over the last ten years, strangely they do not seem to be learning from it. There are three simple lessons which could be learned: First, the current approach to bushfire management is not working. Second, the current approach has been tried before and it didn’t work then either. And third, there are still a lot of people around who know all this, from whose first-hand experience much could be learned. [Read more…] about Bushfire Management in Australian Forests: A Note from Roger Underwood

Filed Under: Information Tagged With: Bushfires

Water Levels in the Swan River Estuary: A Personal Observation

June 4, 2013 By Roger Underwood

I READ with interest an article in The Fremantle Herald newspaper in which global warming was blamed for rising sea levels, which in turn were said to be submerging the mud flats in the Swan River estuary and thus destroying the habitat of migratory birds.

Reading it, I could not but reflect on my own observations of water levels and on the accretion and erosion of mud banks in the Swan River over my life-time. I have known the river intimately since the early 1940s when as a toddler I first paddled in the waters of Freshwater Bay. Over the years I have swum and fished in, and canoed, rowed and sailed on the river. I have cycled around the riverside paths, explored the river’s shores and bushland, walked my dogs at the river’s edge, and enjoyed the wildlife – some of which (like the river cobbler) seems to have disappeared, while other species (like the black swans) appear to be flourishing. I have known the river from Preston Point at East Fremantle to the Perth Causeway and beyond for over 60 years, and since 1980 I have swum regularly at the old Bicton Baths.

Over all this time I have seen the river rise and fall with the ocean tides, respond to flood waters coming down from the Avon, and fill to its brim with the run-off from heavy rain storms. But I have also seen the Point Walter sand spit so far above the water that it has grown a small-vegetated island. And only last summer there were occasions when the water was so low at Bicton Baths that the bottoms of the swimmers’ ladders were exposed and there were acres of temporarily exposed mudflats west of Alfred Cove and along the Como foreshore.

[Read more…] about Water Levels in the Swan River Estuary: A Personal Observation

Filed Under: Information Tagged With: Climate & Climate Change, sea level change

Warnings about Bushfire Warnings: A Note from Roger Underwood

August 30, 2009 By Roger Underwood

AWSOME_topA PERSISTENT complaint from victims of the Black Saturday bushfires in Victoria was that they had “received no warning”. Over and again we heard statements like this: “There was no fire anywhere, but the next thing, we had fire all around us. There was no word of warning, and we never stood a chance”.

This issue has since been highlighted by the Royal Commission in its Interim Report, and is being taken to heart by fire authorities all over Australia. In Western Australia, for example, the Fire and Emergency Service (FESA) has rolled out a new warning arrangement based on mobile phones, and has carried out a substantial and well-publicised test in a Perth Hills suburb. It was said (by FESA) to have been a great success.

This is a delicate subject, because I don’t want to sound disrespectful to people who lost their lives or suffered in the Victorian fires. I realise that many people are perplexed by the way they were engulfed by fire and caught by surprise. I understand the desire of authorities to get warning systems in place. Officials realise that a failure to deal with this issue in future fires will come back to haunt them if complaints are made to Royal Commissions, Coronial inquiries and the media.

However, the downsides, weaknesses and dangers in bushfire warning systems must be properly understood.  [Read more…] about Warnings about Bushfire Warnings: A Note from Roger Underwood

Filed Under: Opinion Tagged With: Bushfires

Fire as a Threatening Process: A Note from Roger Underwood

March 31, 2009 By Roger Underwood

ABOUT two months ago I received a “heads-up” from a mate who works in Canberra that Environment Minister Peter Garratt was considering listing prescribed burning as a threatening process under the Environmental Protection and Biodiversity Act. At first I thought this was nonsense, but then I reflected on the attitudes towards prescribed burning that we hear constantly from some well-known academics and environmental groups, and it suddenly seemed highly likely. So I wrote a letter to Prime Minister Kevin Rudd, seeking clarification. All of this was going at about the time of the catastrophic bushfires in Victoria.

I have now received a reply to my letter.  It was written by Ms Kerry Smith, an Assistant Secretary with the Department of Environment, Water, Heritage and Arts. Mr Rudd had forwarded my letter to the Minister for the Environment, who in turn forwarded it to his Department, where it eventually filtered down through the Department’s Approvals and Wildlife Division to its Wildlife Branch and thence to the Species Listing Section. 

I now realise that the situation is complex and has many ramifications, as demonstrated by the following advice from the Department:

[Read more…] about Fire as a Threatening Process: A Note from Roger Underwood

Filed Under: News, Opinion Tagged With: Bushfires

Victorian Bushfires: The Result of Human Folly

March 23, 2009 By Roger Underwood

THE catastrophic bushfires in Victoria this year, and the other great fires of recent years in Victoria, New South Wales, the ACT and South Australia are dramatic expressions not just of killing forces unleashed, but of human folly…     I am well aware of the drought, of the terrible conditions on the days of the fires, and of the view from some quarters that all of this is a result of global warming. I accept that drought and bad fire weather increase the risk of serious bushfires. What I do not accept is that “unstoppable” bushfires are the inevitable consequence.  And while I will always welcome improved firefighting technology, I know from experience and from an understanding of the simple physics of bushfire behaviour, that technology can never be a substitute for good land management.  

I am quoting from a paper given by Roger Underwood to the Stretton Group in Melbourne recently.

[Read more…] about Victorian Bushfires: The Result of Human Folly

Filed Under: Opinion Tagged With: Bushfires

The Wilderness Society and Bushfire Management

November 15, 2008 By Roger Underwood

I have been critical of many environmental activists over the years on the grounds that they know what they are against, but they don’t know what they are for. For example, bushfire management systems developed by forestry agencies over many decades are savagely condemned, but no alternative system is offered up as a replacement.

I was therefore interested to see that the Wilderness Society News 173 (Winter 2008) contains a Six Point Action Plan that the Society says will “reduce bushfire risks and help to protect people, property, wildlife and their habitat”. They have done this because they assert that a “massive increase in hazard reduction burning and firebreaks is destroying nature, pushing wildlife closer to extinction and in many cases increasing the fire risk to people and properties by making areas more fire prone”.

[Read more…] about The Wilderness Society and Bushfire Management

Filed Under: News, Opinion Tagged With: Bushfires, Forestry

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Jennifer Marohasy Jennifer Marohasy BSc PhD has worked in industry and government. She is currently researching a novel technique for long-range weather forecasting funded by the B. Macfie Family Foundation. Read more

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