About me, Dave Clarke, writer of the Ramblings of a Bush Philosopher

On this page Why do I write these pages? My background My greatest concern Two long walks A fortunate life Elysium Environment and me CO2 production calculation CO2 abatement calculation Buying green electricity Influences My affiliations Books Revegetation A purpose Best thing I've done? The end Index   What is precious to me? My family; Truth; The natural world, our planet Earth; The advance of science (and the fight against ignorance and superstition); Philosophy – including especially moral philosophy (ethics); The arts; Friends; Freedom. Truth is of huge importance and it is under siege in this age perhaps more than any other, particularly from people like US President Donald Trump, and Australian Prime Ministers Abbott and Morrison. Among the enemies of truth are religion and other superstitions. These are delusions. We must all (certainly including myself) examine ourselves and our beliefs, searching for possible delusions.   Flinders Ranges Native cypress trees The natural world, our living environment and the non-living part of the biosphere that supports life, must be protected if the lives of all of us, and our decedents, are not to be greatly degraded. This of course includes the atmosphere and oceans (climate change, ocean warming and acidification). The natural world is more under threat today than ever before; at a time when altruism toward nature is required, people seem to be just as selfish and short-sited as ever; will they ever realise that without our environment we have nothing? I have decided to do all I can in the remainder of my life to try to get serious action on climate change; I believe that having compassion for all life demands this. Science has much in common with truth; it is a method of discovering the truth. The scientific method is probably the greatest discovery of Mankind. Science has shown us how the Universe works and has brought us most of what is good about our present civilisation; it has brought us knowledge. But science is under attack from those who do not like what it is showing us; in particular those religious people who deny evolution and from climate science deniers. Philosophy informs us of how we should live, teaches us to evaluate arguments and to critically look at all beliefs and opinions. Philosophy places everything, including science and truth, into context. The arts: Some of the greatest creations of the human spirit; Music: I could list hundreds of pieces here – Borodin Nocturne from String Quartet No. 2 in D Major; Dvorak Part six of his Stabat Mater; Tenore solo, Coro. Andante con moto (Fac me vere tecum flere); Sibelius Finlandia; Pachelbel Canon; Handel Messiah; Ombra mai fu; Jeffes Music for a found Harmonium; Vaughan Williams The Lark Ascending; Ennio Morricone & Chiara Ferrau Nella Fantasia; Painting: A very rough selection of a few of my favourite painters in no particular order – Hans Heysen (Australian; particularly known for his paintings of gum trees and the Flinders Ranges); Rembrandt; J. M. W. Turner; H. J. Johnstone (I am in love with a single work of his: "Evening Shadows – Backwaters of the Murray" in the Art Gallery of South Australia) The Heidelberg School; particularly: Tom Roberts; Frederick McCubbin; Arthur Streeton; Islam's antipathy to the arts is one reason I loathe and fear that religion. Friends; I don't have a lot. I haven't met many people who think like me. Those I have are precious. A Walk for Solar Power significantly increased the number of people I know who think like me, and, I would like to think, the number of my friends. Freedom; The freedom to do whatever one wants to do, within ethical limits; freedom of speech; freedom of thought, freedom of the media (under threat as I write in Australia and elsewhere), freedom to pursue knowledge; freedom from institutionalised misinformation as exists in places like China and North Korea, or under an Islamic government; freedom from discrimination; the freedom to die if and when I want to. What is loathsome to me? Anti-science Lies Delusion and superstition Ignorance Greed Corrupt government   Rottnest Island wind turbine This is the wind turbine that PM Abbott claimed he found so objectionable. Anti-science; the activity of the climate science deniers, those who make up lies about wind power, and those who try to discredit science for whatever purpose. Lies from people who knowingly lie, who cannot support their arguments with valid and rational evidence, or who simply don't bother trying to discover the truth. Delusion and superstition; the beliefs held without supporting evidence; including minor delusions such as divination and that great delusion, religion. (Of course there are many very good people who are deluded; but they are good in spite of their delusions rather than because of them.) Ignorance allows the anti-science forces and the liars to get away with their activities. "Not to know is bad; not to wish to know is worse." African proverb Greed; the greed of those who can never have enough money (and the power that comes with wealth) is doing great harm to the world. Society should condemn such people, instead there seems to be a twisted form of hero-worship. Governments should be working toward redistributing the wealth that is in so few hands; instead they seem content to allow the rich to become richer and the poor to become poorer. (I've written pages on corporate greed and contribution to society.)   Home Top Index Corrupt government; such as the Australian Liberal governments of Abbott, Turnbull and Morrison, who have served the short-term interests of the fossil fuel industries rather than the long-term good of the nation, the planet and all people. Why do I write these pages? Since about 1985 I've been writing letters to the editors of local, state, and Australian national newspapers because I felt an obligation to at least try to make the world a better place.   Faults I am no saint. My wife and I have two properties 75km apart; travelling between the two over the years has burned a lot of fossil fuel; We enjoy holidays interstate (driving with a camper trailer) and overseas (flying); I eat meat, vegetarianism is easier on the environment and more ethical; I'm sure that, if I gave the matter more thought, I'd be able to list other faults; There are many things that I have done that I regret. "The only thing necessary for the triumph of evil is for good men to do nothing." Edmund Burke "I aimed to make the Earth a better place – and failed miserably" Professor Harry Messell (However, the world might have been a better place for his having lived.) When the Internet became a popular way of spreading ideas I started these pages. I'm not sure when I started; two of the earliest pages were on divining and religion, both written about September 2001. In 2002 I wrote a page on 'The Real USA' because the pandering to the US by Australian governments, both Labor and Liberal, sickened me. I wanted to show that much of what various US administrations had been up to was far from honourable. This was for a few years one of the most visited of my pages. Early in 2004 I started writing the pages that have become "Wind in the Bush"; my Net pages on wind power. (I had followed the development of wind and solar power with interest since before the construction of Australia's first wind farm at Esperance in 1987.) The aim of these particular pages is to give the facts, and make an effort to dispel the myths, about wind power. I am convinced that the greatest single threat facing the world in the early twenty-first century is climate change and one thing we can do to greatly slow climate change is to replace fossil fuel electricity generation with renewable energy as quickly as possible.   A wind farm in Mid North South Australia A very small part of North Brown Hill Wind Farm, near Jamestown, in wheat and canola fields Photographed by my drone, 2017/09/15   If we had to answer to a higher authority If there was a higher authority to whom we had to answer after our deaths (of course there is not) and he/she/it asked me “What have you done in your life that has justified your existence?” I would answer “Publicly exposing and refuting the lies of those who have dishonestly opposed the wind power that the world must have if we are to combat climate change. I have shown people the truth.” The fight against the purveyors of misinformation is a never ending job; there are many people with many reasons for trying to discredit this major renewable energy technology; and many of them are not above lying in the effort to achieve their ends. Many of those who are opposed to wind power also deny climate science because they see that climate change demands moving away from fossil fuels to renewable energy. To oppose wind power is to support the coal industry by default; air pollution from the mining, transport and particularly the burning of coal kills millions of people world wide each year. People like Andrew Bolt, Alan Jones and Ian Plimer who make a very lucrative (although hardly a respectable) living out of opposing action on climate change, probably don't believe much of what they write and say; they are simply cynically working for the fossil fuel industry and pandering to the ignorant. I believe that it is necessary to show that much of what they claim is false by giving the evidence behind the truth. On 'the same side' as Jones, Bolt and Plimer (perhaps the employers of Jones, Bolt and Plimer, in a sense) are Gina Rinehart, Clive Palmer and Gautam Adani, who are probably only interested in the money that they can make out of anything at all, it just happens that they have chosen coal; they are motivated by greed, they simply don't care about the future of the planet. A paraphrasing of Mark 8:36 is appropriate here: "For what does it profit a man to gain the whole world if it means forfeiting his self respect and earning the contempt of decent people." Then there are the well meaning, but deluded people, like (ex Dr) Sarah Laurie, who believe most of what they say, but do a great deal of harm. Their claims need to be debunked. Finally there are the many who are best characterised as ignorant, ill-informed and/or selfish and those who are simply undecided but open-minded. I have no expectation of changing the ways of the Bolts and Joneses of this world, I write in the hope of getting through to at least a few of those whose minds are not closed. "A mind is like a parachute. It doesn't work if it is not open." Frank Zappa Like so many idealists I hold that it is important to consider the needs of others, including those yet to be born, that one has a responsibility to be well informed and examine one's beliefs, and that there are more important things than one's own short-term selfish interests. My family and me I am the one with the grey beard One of my hobbies is photography There are a huge number of subjects about which I know very little. I write about those few subjects of which I have some knowledge. I have listed those pages of mine that I believe to be the most important. These pages serve me as a reference, I often look back at things I've written to fill in some detail I had forgotten, or check on where the information came from. They have helped me, by allowing me to put thoughts into writing, decide what I believe to be right and wrong, acceptable and unacceptable; and decide on 'my view of the world'. The fact that I rarely find that something I wrote years earlier does not suit my current knowledge and beliefs is interesting; this could mean that I make few mistakes, or is it more likely that it means I am old and fixed in my ideas? The structure of hypertext reference pages is ideal for filing ideas under headings and linking them together, allowing ready information retrieval, and having it all on computer (and the Internet) makes searching easy. "The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man." George Bernard Shaw "If you think you are too small to make a difference, you've never been in a room with a mosquito." Annita Roddick You'd have to say that the above quotes were simplistic, but they are also basically true; that being the case, I, as an unreasonable man, attempt to do my little bit to produce progress toward a saner, more ethical world (or perhaps at least to slow the decline toward insanity and self-destruction). It seems that the world is run by madmen (in January 2010, when the stresses that Mankind is placing on this planet should be obvious to all, the leaders of the two dominant political parties in Australia have both said that they believe Australia needs substantially more people, and quickly. Perhaps it is more than coincidence that these two men, Rudd and Abbott, are deeply religious.) The election of Donald Trump as President of the USA in 2016 greatly strengthened the impression that the world is run by madmen; and that many voters were remarkably stupid. My writing talents are ordinary, my intelligence likewise, my public speaking abilities nil; but if, by these pages, I can influence half a dozen people to give up superstition or try a bit harder to move the world away from its present race to environmental disaster, or even just to examine the world from a more rational or less selfish point of view, all the writing might have been worth-while. I feel I must try anyway; I dream of a better world. A disability: Why write and not speak publicly? I have never been a good speaker. I have always hated public speaking and always have trouble thinking of the words that I need at the time I need them. When I am debating something I often think of what I should have said about ten minutes after I needed to say it. Consequently, I avoid radio interviews and making public statements at inquiries, etc. I suspect that this limitation is sufficient to be called a mild disability. (Maybe it's more than a mild disability; maybe many people have the same disability?) My background I was born in the mid 1940s near Adelaide in South Australia. For eight years after leaving school (I loathed high school) at age 15 I worked on the family dairy farm; where I educated myself (a very patchy education) from a set of Encyclopaedia Britannica (one of my best ever investments), taught myself some general science, some mineralogy and the qualitative chemical analysis of minerals, lapidary and astronomy and a little mathematics.   Aurland Fjord, Norway The life of a dairy farmer is hard and the hours are long – I gave it up and got a job with the Adelaide Metropolitan Fire Brigade. After realising that working as a fireman suited me no better than did dairy farming I lived and worked in the bush in the mineral exploration industry for a while, finding that a year in the Australian bush living under canvas can be a great learning experience as well as very enjoyable. In this period I also did a seven week stint studying geology at a summer school in the University of Tasmania. Travelling overseas for eight months, returning from Europe by the overland rout via Yugoslavia (as it was then), Greece, Turkey, Iran, Afghanistan, Pakistan, India, Thailand, Malaysia, and Singapore was another once-in-a-lifetime experience. The last thirty years of my 'working' life was in the hydrogeology (groundwater) field for the South Australian public service. In this period I taught myself computer programming, first in BASIC and then Pascal; applied this to hydrogeology and wrote two books in Elsevier's Developments in Groundwater Science series: "Microcomputer Programs for Groundwater Studies" and "Groundwater Discharge Tests: Simulation and Analysis". The Public Service in South Australia at that time discouraged technical officers in hydrogeology from computer programming; computer specialists were employed to do that. (Of course they new nothing about hydrogeology and would have been quite incapable of doing the more important of the work that I did. Such is the public service.) However, I was lucky enough to have encouragement from several superiors (who I have listed under Influences). Since 'retiring' most of my time is taken up with gardening and looking after the family property, Elysium, and working on this Internet site, especially the wind energy pages.   Gleeson Wetlands at Clare One of my favourite places Since late 2012 I have become involved with Lions and since June 2014 I have been particularly involved – through the Lions Club – with Gleeson Wetlands. Since September 2013 I've also been removing rubbish from roadsides. (The dumping of rubbish on roadsides is similar to the dumping of waste – greenhouse gasses – into the atmosphere.) In June 2017, after being blocked from posting on a Facebook page opposing a local wind farm, I started a page explaining why I supported the project. In March 2018 I started a campaign attempting to make cafes more responsible in handing out 'disposable' cups, that often finish up littering roadsides. My greatest concern I believe that our civilisation is quite unsustainable and is heading toward a catastrophic collapse due to climate change (together with ocean acidification) or by one or a combination of those unsustainability problems listed by Jared Diamond in his book Collapse and repeated on my Compare Disasters page (I have added more to Diamonds list here). Such a collapse would probably include terrible wars, mass migrations, famines, and losses to our culture; at worst I can imagine a fall back to barbarism or a world dominated by religious hierarchies. Of course it is not only humanity that will suffer due to the errors of humanity; climate change will cause the extinction of many species; not, I suspect, including humanity.   Home Top Index If our civilisation does collapse, and we sink into barbarism, then climbing back to a civilised state could be very arduous, because all the easily mined fuels and mineral resources will have gone – they have been mined out by our society. On the other hand, if our civilisation does not collapse, climate change will result in one of the greatest mass extinctions in paleontological history. Two long walks The first long walk One great experience I had was to walk from Port Augusta to Adelaide in support of a solar thermal power station for Pt. Augusta – to replace the coal-fired power stations that are there now. This took place during the second half of September 2012, from 2012/09/16 to 2012/09/30. One of the best things about it was the people I met. Most of them were young; late teens to early twenties, but there were six others who like me, were in their sixties. All the over-50s who did the walk From left to right: Margaret Hender (of CORENA), Pete Gorton, John Bowman, Marty O'Hare, Gaby Jung, Me (Dave Clarke), Bill Gresham, Les Webb. More than two years later I am still in touch with all of them. Note the smoke plume from the Port Augusta coal-fired power station on the left. I don't have many close friends; I have come across very few people who think like me. The oldies on the walk did think like me! To meet six people who (are roughly my age and) think like me in a group of 60 or so was a revelation! They wanted to see the planet run on ethical principles! They wanted to see serious action on climate change! The walkers came from all over Australia. There seemed about as many from NSW or Victoria as there were from SA. Others came from WA, Queensland and Tasmania. How did I handle the walk? (By the way, I was the oldest by about six months.) The first day was only 16km, while the average day was around 23km. I walked the first day with no problems. On the next three days I drove a support car (I was one of the few to have my own car and trailer on the walk) about half the day and walked half the day. From then on I walked all day every day. Raised a couple of blisters on about the ninth day, but apart from that had no problems. Many of the younger people had big problems with blisters and had to take days off. We met (State) Minister (Energy and Infrastructure?) Tom Coutsantonus on the road. He was very positive about agreeing with our aims, but said that a solar power station at Pt. A. was too big a project for the State Government; money would have to come from the Feds. There was a lot of media coverage before, during and after the walk. Everyone in SA who had any interest in renewable energy, or in the Port Augusta area, would have heard about it. After two weeks we arrived in Adelaide and there was a rally that started in Rundle Park (Dr Karl Krusetnitski as the main speaker), from there to the steps of Parliament House, then on to Victoria Square. Again, a big media presence. All in all, it was a wonderful experience, and it showed me that I am not alone in caring about the world! The second long walk In 2014 a few companions and I walked from Melbourne to Canberra, taking a petition pressing for more action on climate change. That walk is described on another page on this site.

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A fortunate life

Herat, western Afghanistan, near the Iranian border There are many ways in which I have been lucky: I was born into a loving family and my parents were intelligent and reasonably well off financially; I was born at a time when science and free thought had largely displaced superstition and religious dogmatism; I was born in one of the more economically progressive, and least religious countries in the world (Australia); I was born in a progressive and wealthy age; I was born before the great concentration of wealth into the hands of a few had corrupted the government of many nations, including my own; I was born before Mankind's impact on the world had caused the enormous harm that we are facing now; I had the good fortune to learn to question everything – to take nothing at face value. I don't think I can really take credit for this – it just happened; I have a wonderful family; While I have never been wealthy, neither have I ever been poor; I've always had enough income to cover my – and my family's – needs, with enough left over for a few luxuries such as an occasional dinner out and an annual holiday; I have never been a sheep – never cared much about following fashion, always sought to develop my own 'philosophy'; I have been lucky enough to not become an alcoholic, not take up smoking, have quite good general health. I might just as likely have been born into an Islamic country where I would not have had access to a good education, good books, and in which I would have had religion 'pushed down my throat' from a very early age. I might have been born into a poor family in a poor country, in which case I would not have had the opportunity to get an education because I would have to spend all my time trying to feed my family and myself. I might have been born into an earlier age in a Christian country, when religion again would have stopped me from learning a scientific outlook.

Elysium

Early morning mist, winter, Elysium
Some of the trees we have planted at Elysium

The family property, 'Elysium', in the Clare Valley of 'Mid North' South Australia has a total area of 46ha. We bought it in 1993, when, apart from a small pine forest, it had on it about 50 gum trees and nothing else of note. It now includes 2ha of shiraz wine-grape vines, about 5ha of olive trees, several plantations of closely spaced eucalypt hardwood trees, and a number of fruit and nut trees. Most of the remainder is now covered with open woodland that I have planted; there would have to be over a thousand gums in total. When these trees mature they will begin to be sustainably harvested for firewood. In 2012 I have noticed for the first time that there is quite a lot of natural propagation of 'my trees' happening. The area beneath and between the trees will be available for grazing animals. There are several photos of Elysium elsewhere on this site. Clare trees is a page I have written detailing my efforts at tree growing on Elysium.

Tyres floating on my dam to reduce evaporation
Reducing evaporation from farm dams in hot dry areas such as the Clare Valley is an important issue. This photo was taken on a frosty morning in July 2012 before the dam filled.

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The environment and me

Is there anything more beautiful than a tree? Of all the thousands of trees I've planted perhaps this is the one I love the most. George Monbiot once wrote "Show me an environmentalist and I'll show you a hypocrite". He had a point. Some of those who preach about the environment are personally responsible for releasing a lot of carbon dioxide into the atmosphere. For example, pop singers write songs about saving the world and then tour the world in private jet planes singing their songs. Famous environmentalists continually fly around the world giving talks on environmental responsibility. Of course we must consider the point carefully – how much good do they do compared to how much bad? Perhaps if they did not fly around the world so much they would achieve much less? My approach to the environment First I should say that I owe more than I can ever repay to my wife, Denece, for her never ending support and help. Climate change and the related ocean acidification are the greatest disasters Man has ever faced. Most Australians seem not to care enough to change their greenhouse gas producing habits. I must admit that in the past I have been content to do more about reducing CO2 emissions than most other people; partly due to Monbiot's statement mentioned above I have come to believe that being a little more responsible than most is not enough, one should do as much as one can. I would like the Earth of the future to be not greatly inferior to the one that I know and love. The list below I compiled partly because I wanted to make a list for my own interest, and partly in the hope that it might give others some ideas that they may not have already thought of.

Our solar photovoltaic panels and solar water heater at Crystal Brook

A small car with occasional use of a trailer will produce less CO2 than a big car. This Mazda 121 has only a 1300mL engine, can comfortably tow a trailer with a 500kg load, and as of April 2011 has done 194 000km and is still going strong. Quality is more important than quantity!

Revegetation we have done on one of many Crystal Brook roadsides

Some of the native eucalypt trees that we have planted on our property, 'Elysium'.

At Elysium our hot water comes from this solar panel in the warmer half of the year and from the wood-fuelled heater in the background when the sun is not shining; no fossil fuels needed.

More of the eucalypts that we have planted at Elysium. Self-sown leucoxylon in the foreground, behind those are camaldulensis, cladocalyx, and globulus; in the background are Pinus radiata that were on the property before we bought it.

Wattle Point wind farm on Yorke Peninsula. Wind power is not 'the answer' to greenhouse/climate change, it is 'a small part of the answer'. I do what I can to support wind power. The closest wind turbine to my home is at Clements Gap Wind farm 14km away.

My efforts to become more environmentally responsible

• Trees
  Trees take carbon dioxide from the atmosphere.
  • Trees on roadsides With help from family and friends, I have planted trees on all available roadsides within several kilometres of my home. (Photo at right)
  • Woodlot I am planting trees on the family property, ' Elysium'
  • Controlling feral plants I have killed most of the feral pepper trees along the creek at Bowman Park and some other areas around Crystal Brook to allow native trees to recover.
• Cellar I had a cellar built at Elysium in July 2006. This used a large amount of concrete which is not environmentally friendly, but the energy savings in the long term, due to there being no need to heat or cool the cellar, will outweigh the initial environmental cost.
• Transport
  There are a number of things that can be done to minimise ones greenhouse impact.
  • Minimise car use I try to only use a car when there is no reasonable alternative and walk or ride a bicycle when I can.
  • Use a small car rather than a big car Use a trailer when the car is not big enough. (Photo at right)
  • Use public transport When walking or cycling is impractical and when available. (There is very little public transport in my area.)
  • Avoid flying Not one of my strong points!
• Electricity
  • We used to buy our electricity from AGL, but since they, like the other two big electricity retailers (Energy Australia and Origin), lobby the government against renewables, we changed to Diamond Energy;
  • I try to be conscious of minimising our use of electricity all the time.
  • Solar water heater We have had a solar water heater on our house for about 30 years, and have more recently installed one at Elysium. They have not only saved lots of carbon dioxide, but have saved us a bucket of money. (Photos at right)
  • Solar photovoltaics We installed 1kW of panels at our home on 2006/02/08 (either the second or third PV in Crystal Brook, photo at right), another 1.5kW at Elysium on 2011/01/18, paid for 5kW more to be installed on our daughter's house on 2011/01/25, paid for about 3.4kW on our son's flat in April 2011, and put another 5.2kW on Elysium on 2014/02/18.
  • Green electricity We buy 100% green electricity.
• Heating/cooling
  • Wood fire heating We rarely use any other form of space heating.
  • Evaporative air conditioning We only use the more energy consuming heat-pump (reverse cycle) air conditioning at the rare times when it is hot and the humidity is too high for the evaporative air conditioning to work.
  • Use natural heating/cooling We try to minimise the need for home heating and cooling by using passive methods of temperature control, such as insulation and opening and closing windows at appropriate times. In winter we open the house at the warmest time of day; in summer we open the house in the coolest time of day.
• Rain water We catch most of the rain that falls on our roof. This saves a little water from the over-taxed Murray river.
• An effort to change the World A citizen's participation in democracy should not be limited to voting. I have heard advice that there is no use worrying yourself over things that you cannot change; this is good advice, but it should not stop you from trying to change those things that are very difficult to change. If you want something done, do it yourself. If you try you may fail, if you do not try you will certainly achieve nothing. If you are unwilling to try, why should others do so?
  • Letters to newspapers
  • Letters to politicians
  • I have stood for parliament twice
  • Maintaining this Internet site, which is largely devoted to environmental matters, particularly wind power
  • Participating in a 320km walk from Port Augusta to Adelaide in support of a solar-thermal power station at Port Augusta
  • Participating in a 740km walk from Melbourne to Canberra to press for action on climate change from our federal government
• Ethical investments We are careful to place our savings where they will be used ethically. For example, we took most of our cash savings from the ANZ bank, because it was loaning money to coal miners, and placed them with the People's Choice Credit Union.
• Cleanup I am trying to get the message out about climate change at the same time as cleaning up local roadsides.
• Refrigerator/freezer A minor thing, but everything counts – we replaced an old refrigerator and freezer with modern and more energy-efficient ones. Not only has this reduced our greenhouse footprint, but it will save us money in the long term.

Total energy consumption

My wife and I use a total of about 12 kWh/day electricity (three meters, figures for 2010); this is 100% green power so would equate to about 13 kWh/day at the generators (wind or hydro) allowing for transmission losses. (If we used fossil fuel generated power then the total energy in the fossil fuels burned to supply our 12 kWh/day would be about 53 kWh/day (12 × 1.1 / 0.25, allowing for transmission losses of 10% and conversion efficiency of 25%).

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CO2 production calculation

I recommend this exercise to everyone. I learned a lot from doing it. (Most of the figures are at least to some extent estimates; of course now [December 2012] they are dated.)

2006
Activity		kg CO2
Holiday in Vietnam	Air travel	4600
	Internal travel	1000	Vietnam total 5600
Holiday in Western Australia	Air travel	840
	Car travel	720	WA total 1560
Use of cars	Toyota Corona	500
	Mazda 121	1800	Vehicles total 2300
Electricity consumption	At home	2900
	At Elysium	1100	Elec. consumption total 4000
Building concrete cellar	Cement	4500
	Steel	1000	Cellar total 5500
Miscellaneous	(Guess)	500
Gross total		19 460
Renewable electricity credits	Photovoltaic panels	-1825
	AGL green electricity	-3450	Elec. credit total -5275
Net total		14 185	=14.2 tonnes

This table shows how much impact holidays involving air travel have on one's greenhouse gas production. The holiday in Vietnam for two people, at 5600kg of CO2, is 29% of our gross greenhouse gas production for 2006!

Note on the cellar, above. We built a large cellar based on a buried concrete tank in 2006. Producing the cement and steel for the cellar released something like five and a half tonnes of CO2 into the atmosphere. My page on Wind power problems discusses the CO2 implications of cement manufacture a bit more and contains some references. This is a big, one-off, boost to our greenhouse gas production, but should cut our annual greenhouse production from now on by reducing the need for air conditioning. It will also provide a large cool storage space that will not require energy and therefore will not be responsible for producing CO2 for many years. There is more on this cellar in the Australian section of this site.

2007
Activity		kg CO2
Use of cars	Honda Jazz	1800
	Mazda 121	600	Vehicles total 2400
Electricity consumption	At home	2900
	At Elysium	1100	Elec. consumption total 4000
Miscellaneous	(Guess)	500
Gross total		6 900
Renewable electricity credits	Photovoltaic panels	-1800
	AGL green electricity	-3500	Elec. credit total -5300
Net total		1 600	=1.6 tonnes
Since writing this, it has been pointed out to me that the amount of the generation of the photovoltaic panels should not have been subtracted from the total.

Average annual CO2 production Who How much CO2 released (tonnes) Average global citizen 1 Average citizen if climate change is to be stopped 0.3 Average Australian household is directly responsible for 14 Per capita Australian CO2 including all sources, eg. mining, manufacturing, office buildings, commercial transport, etc. 27 My wife and I (each) 2006 7 My wife and I (each) 2007 0.8

I have read that the average global citizen is responsible for releasing one tonne of CO2 into the atmosphere each year (and that this must be reduced to 0.3 tonnes if climate change is to be limited to a acceptable level). At seven tonnes each in 2006 my wife and I, like most Westerners, are way ahead of the average, and we consider ourselves to be careful! The average Australian household is directly responsible for about 14 tonnes per year, but I believe that if each person's share of the CO2 from things, like manufacturing and mining, etc. was included, the total would be around 27 tonnes per Australian per year.

I have only considered the CO2 that my wife and I are more directly responsible for here.

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CO2 abatement calculation

Plantation	No. trees	Ave. mass	Annual % increase	kg CO2
Bore	150	100	40	5500
One Hectare	600	40	40	8800
Bog	100	60	40	2200
Dam paddock	150	5	200	1375
	25	300	40	2750
New paddock	300	1	250	690
Open Woodland	400	1	250	920
	80	300	40	8800
Totals	1805			31 035

Notes on the table

What I have learned out of this exercise

Influences

Books

Revegetation About 1988 I started planting native trees along roadsides around my home town, Crystal Brook. Crystal Brook area Trees along Binney Road, Crystal Brook Bowman Park. Most of the lower trees on the left are feral pepper trees The roadside planting I did was the south-western side of Greig Road north-west of Frith Road, photo at right. I think it was probably the next year that I planted the other side of Greig Road. Other roads planted were Nurom Road between the creek and highway, Frith Road, Darbon Terrace, (and the apparently unnamed road on the western side of town that run between Greig Road and Darbon Darbon Terrace), parts of Huddleston Road east of the cemetery, Bowman Park Road, Gadd Avenue south-west of town, and Brook Park Lane. In the first year I planted Australian native trees that were mainly endemic to Western Australia (along the south-western side of Greig Road); after that I only planted species that were endemic to the local area. Feral pepper trees Starting about 2002 I began trying to remove feral pepper trees along the Crystal Brook. At first I cut and swabbed trees upstream of Lions Park, not very successfully. Someone else later did more work on these trees. In August 2003 I started killing pepper trees along the Crystal Brook at Bowman Park. I kept the local council (Port Pirie Regional Council) fully informed of what I was doing. To say the least, Council has not been supportive, although they have agreed that the pepper trees should be removed. I have discussed this in my blog. I intend to continue this project until all the pepper trees along the creek in Bowman Park are dead. When the pepper trees are gone the native red gums (Eucalyptus camaldulensis) will be able to take their place. Many red gums along the Crystal Brook have suffered greatly from a lack of water in recent years. Killing the pepper trees will make many thousands of litres of groundwater available to the gum trees each year. The method I have used to kill the pepper trees is drilling and injecting with Garlon. This is done by drilling 6mm diameter holes at least to the cambium layer at about 5cm spacing around the trunk of the tree and then immediately filling the holes with neat Garlon. The holes should slope downward and should be as close to the base of the tree as possible. I have been informed that glyphosate is just as effective as Garlon, but have not yet tested this. Clare area Getting ready to ringbark one of the larger of the aleppo pines in Spring Gully Conservation Park About 2000 my son Ken and I killed all the feral aleppo pines (Pinus halepensis) in the section of Spring Gully Conservation Park near the spring. In early 2005 I got permission from the Clare and Gilbert Valleys Council to begin removing feral trees and revegetating with natives along a length of the Clare to Blyth road. The section I am working on runs from the top of the hill overlooking Blyth (Lat. S33.84039, Long. E138.55978) about a kilometre down the hill (to Lat. S33.83981, Long. E138.54965). Blyth Road east of this point is crowded with ferrel trees, mainly aleppo pines, but also olive trees and others; there is very little native roadside vegetation remaining between Scobie Road and the top of the hill. There is a lot of native vegetation remaining along the section that I'm working on, but there is also many ferrels: mainly aleppo pines, olives and briars. As of April 2006 I have killed most of the aleppo pines. They are easy to kill. The smallest are easiest handled by pulling them out, larger ones can be cut off at ground level, and the biggest can be ring-barked. Home Top Index Olive trees are much harder to kill. Again, the smallest ones can be pulled out, slightly larger ones can be dug out with a pick. Cutting larger trees and immediately swabbing the stump with glyphosate might kill them. I am intending to experiment with drilling an injecting (as used against pepper trees, above) in future. Gleeson Wetlands A small part of the Gleeson Wetlands 2017/05/31 Starting in June 2014 the Clare Lions Club took part responsibility for looking after the Gleeson Wetlands. I have spent many hours, and obtained great satisfaction, working at killing weeds, planting, mulching and generally looking after the gardens at the Wetlands.

A purpose

Boco Rock Wind Farm, New South Wales Debunking the lies about wind farms has given me a purpose – see the main text. As I have written elsewhere in these pages I do not believe that there is any ultimate purpose to life apart from that forced upon us by our genes. No open-minded thinking person can place any credence in religion. Yet it seems to be human nature to crave a purpose, so what purpose can one give to one's life? Apart from the day-to-day necessities of living, can we feel that we have some value? How can we have any self-respect if we see our existence as useless and pointless? In the first few decades of our lives we are occupied with our education, finding our place in life, and probably finding a partner. Once we have children (supposing we are among those who do have children) we have a purpose in giving them the best possible start in life that we can. (Abraham Maslow produced a hierarchy of needs, which is very relevant to this subject, but too complicated for me to go into on this page.) But when our children have left home and become independent, and supposing that we are sufficiently financially secure that our immediate needs are taken care of, what purpose remains to life? My musings on ethics has convinced me that I can and should make an effort to do what little I can to make the world a better place in my remaining years. (I have written at some length about my general background elsewhere on this page.) I am convinced that climate change and ocean acidification are the greatest threats to the future of life, as we know it, on Earth; and also that humanity could greatly reduce the harm that we are doing to the planet with relatively little effort. Yet we are not making that required effort, and the Earth continues to suffer from our misuse. So I feel that my primary purpose at this point of my life (2017) is to do what I can to try to get action on greenhouse emissions. At the same time I will do what I can to try to improve my local environment. It happens that the region in which I live is well suited for wind farms, which reduce greenhouse emissions by displacing fossil fuel generated electricity. Some of the local wind farms that are present have been built with little or no opposition, others have had determined and vocal opposition. Many of the arguments put forward by the opponents are either ill-informed, dishonest, or misleading. No one else in my region, apart for those who are building the wind farms, have made much effort to try to counter the misinformation from the wind farm opponents, so I have found a purpose in doing so myself as an independent voice. On other pages on this site I have written about wind power in Australia, have discussed why I support a proposed local wind farm which is suffering from selfish, short-sighted opposition and mused on the contrast between the opposition movements to wind and to coal. The best thing I've done?   Trolls My advocation of wind power, and my public contradicting of those who lie about wind turbines, have unsurprisingly attracted the attention of some trolls. While these are malicious people who insult and abuse, they are in fact of some use. If I was substantially wrong in my writings I'm sure that there would be intelligent people telling me so (I do correspond to many well informed people who provide very valuable information). The fact that my critics are almost entirely ignorant low-life, who typically hide behind false names, suggests to me that I must be largely on the right track. As mentioned above, my greatest concerns are climate change and ocean acidification. While the two long walks I have done were aimed at getting action on reducing Australia's greenhouse emissions, I suspect that my participation had very little impact. Where I have had a significant impact is in providing factual information about wind power and exposing the lies of those who have dishonestly opposed its development. Being independent of the wind industry gave my writing more credibility than the information provided by the industry, because that could be perceived as being biased. An Internet search on many subjects relating to wind power will find one or another of my pages. Not only have my pages given the public access to facts, but they have given opponents an incentive to take more care in their claims, or be exposed as liars. By showing wind power to be generally environmentally friendly, harmless to health and welfare, and effective in reducing greenhouse emissions, I feel I have achieved something in the fight to limit anthropogenic climate change. Having good intentions and trying to do good is great, but to feel that you have achieved some significant good is very satisfying. Another project In mid 2019 I started revegetating an area of neglected land in the middle of Crystal Brook. This had to fit in with my continuing efforts to look after Bowman Park, near Crystal Brook and Gleeson Wetlands in Clare. The land in the middle of Crystal Brook had for many years been under the control of the body that controlled the railway line that runs through it. More recently it has come under the state Department of Planning, Transport and Infrastructure. Both organisations have provided some resistance to the improvement of the land, but I have made progress in spite of this. Until very recently I have called the land the 'railway reserve'. I intend calling it in future Crystal Brook's Central Park.

The end

Index