Thursday, January 04, 2007

Warming not global: 'faster in Australia' (??)

Some very strange logic below. I guess it's the logic of the Church of Global Warming

Australia appeared to be suffering an accelerated Greenhouse effect, with the pace of global warming faster across the country than in other parts of the world, climatologists said today. The world's driest inhabited continent, already suffering one of its worst droughts, was waging its own unique climate war, said Australia's Bureau of Meteorology yearly climate report. Half the country was desperate for water and the other half was awash with a year's rainfall for the entire continent. [So no overall effect!!!]

"Most scientists agree this is part of an enhanced Greenhouse effect," bureau senior climatologist Neil Plummer said. "Temperatures are actually rising a little bit faster over Australia compared to the global average, and we know that of Australia's 20 hottest years, 15 have occurred since 1980".

As the first cyclone of the summer bore down on Australia's northwest coast, bringing more rain and potentially destructive winds, the report revealed extraordinary climatic contrasts. Some areas experienced rare summer snow falls over Christmas to dampen bushfires, even as the drought tightened its grip and major cities imposed tough restrictions on water usage.

While the nation received above average 2006 rains, with 490mm of rain falling against the 472mm average, key water catchments and rivers shrivelled in the food bowl southeast where most Australians live. "Rain fell, but just not in the most populated areas. Most Australians would certainly have seen 2006 as a dry year," Mr Plummer said.

Australia's average temperature for 2006 was 0.47C above the long-term average, but it was only the eleventh warmest year since 1910, the bureau report said. And despite record daily temperatures in the southeast, last year was cooler than 2005 due to a very active tropical wet season early in the year.

Mr Plummer said an El Nino weather event in the Pacific Ocean bringing severe drought to eastern Australia was responsible for much of the variation, but that was beginning to weaken. "What we see on the rainfall is a signature of El Nino. There are signs that is weakening and most times we see a breakdown in late summer or autumn, and usually a good break with lots of rain."

Source

See below for some of the history not mentioned above





DROUGHT DECEPTIONS

Australia's worst drought so far came a century before climate change appeared on the national agenda, writes historian Geoffrey Blainey

Some say this is Australia's worst drought in 1000 years. This idea has grown long legs, jumped around the nation and might never quite be brought to heel. That's the trouble with some ideas. They so capture the imagination that they have no need for facts.

No evidence has been produced to support this theory which somehow escaped, as a wild runaway, from the special water summit held in Canberra last month. Of course, this Australian drought is serious and a source of human misery. But is it really the drought of the past millennium? The Australian Bureau of Meteorology, which has earned a strong reputation internationally, thinks it wisest to extend the nationwide rainfall record only as far back as 1900. Historically that cut-off date is a pity because it excludes most years of a drought that was already severe.

From that long period of reliable records since 1900, a surprising fact emerges. While much of the television news makes us think, in this phase of rising temperatures, that Australia is in a uniquely dry period, it is not. The most arid years have not arrived with the present phase of warming. The years of lowest rainfall were 1902 and 1905, at the end of the Federation Drought. Will this climatically nervous year shatter these old records for meagre rainfall? The answer, even before 2006 is completed, has to be "no". In Australia as a whole this is not a drought year in 1000. It is probably not even a drought year in 10.

Our collective memory has forgotten how dry was the period during and after the long Federation Drought. Counting the deserts as well as the dairy lands, Australia received less rainfall during the first half of the 20th century than has fallen in the most recent half-century. There were numerous droughts between 1895 and 1950. In contrast, the wetter years came thereafter, the wettest being 1974. It is strange to contemplate that 2000 was Australia's second-wettest year on record. Admittedly a nationwide summary of rainfall does mask the acute regional variations. Furthermore, that summary does not reveal whether a lot of a year's rainfall was slow and soaking or fell in a cloudburst. But the nationwide average is still a vital statistic in an era when for the first time people are encouraged to look at the weather on a wide, even a world scale.

Somehow, word has spread that global warming inevitably means less rain all around. As a result, the whole of Australia is thought to be suffering. But it is not. In this drought, as in the Federation Drought, some regions in the tropics have been unusually wet. The amount of tropical rainwater running out to sea this year has been massive.

Today's drought, miserable as it is for the rural victims, is not the most damaging, the most painful, in Australia's history. What counts is not the raw records of poor rainfall but the total impact of a drought. In the earlier era when this nation relied heavily on its rural industries, it was more vulnerable to drought than is today's multisided economy.

As recently as the 1930s, the primary industries formed the biggest sector of the economy, even being ahead of manufacturing. Rural industries were huge employers, provided far more than half of the nation's exports and were the lifeblood of the railways, which dominated the state budgets. Farms provided hay and fodder, a main fuel for city transport in the era of the horse. Therefore a drought, by crippling these all-important rural industries, inflicted severe hardships on the cities as well as the countryside.

The Federation Drought, running roughly from 1894 to 1902, dwarfed today's drought in economic terms. The mighty wool industry, more important than mining is today, was crippled by drought and, to a smaller degree, falling prices. NSW in 1891 pastured 62 million sheep, but in the following 10 years that figure was halved. Queensland lost nearly two-thirds of its cattle. The economic effect on rural towns, and even on many Brisbane businesses, was crushing.

The Federation Drought was disappointing, partly because a generation had come to believe that much of its country was relatively reliable for grazing. They had heard such statisticians as Henry Hayter of Melbourne proclaim that there was no limit to the cattle and sheep that could feed contentedly in this continent.

Yancannia, west of the Darling, was one of the huge sheep stations that displayed the defiant new climate. In 1887 the station held a record flock of 171,000 sheep, though there was a tendency to overstock. Then the seasons turned turtle. For the 14 years to 1890 the rainfall averaged 12 inches (about 305mm), but for the next 20 years it averaged just over seven inches, much of which fell in cloudbursts. In the 1890s alone the sheep numbers fell by two-thirds, though the rabbits did not. The old wool port of Wilcannia, as a local historian noted, "was left without even the few inches that would float a paddle-boat". Most of that huge district fell officially into the hands of the receivers, namely banks and finance companies. In contrast, no bank today is heavily weighed down by the burden of worthless rural properties.

Many pastoralists tried to move their flocks and herds to distant regions offering some grass and water. The sides of many bush roads, however, were soon littered with animal bones. In 1899 near Rockhampton, 11,000 sheep died on one short journey.

The drought was so severe that nearly all traffic on many outback roads was halted. Typically, the policeman at Innamincka reported that a teamster had been on his way from Farina but so many of his 84 horses had died that he was forced to abandon the three wagons. That was even before the drought became acute.

On some sheep stations there was no shearing at the appointed time because the shearers could not get through. In others there was no work because the sheep had died. In 1901 the protector of Aborigines for west Queensland travelled 1600km and found even the wildlife had largely vanished. He counted seven bustards, five kangaroos and one emu during that long journey.

The camels took over much of the carrying as the drought intensified. In at least half of the nation the camel became the main carrier. In 1963 I interviewed a man who had become a camel teamster at the back of Marble Bar a half-century previously. He said the far outback "would have broken down" but for the camels.

The year 1902 was possibly the worst experienced by wheat farmers. In the two big wheat-exporting states, NSW and Victoria, the yield was pathetic. For a time, much of the flour used in Australian bakeries came from Indian, Brazilian, Argentinian and especially American wheat.

Towards the end of that drought a young NSW poet, Dorothea Mackellar, wrote verses that became almost a nationalist war cry for a later generation. She affirmed, "I love a sunburnt country". While declaring her affections she was also making a revolutionary statement in the eyes of many farmers struggling to make a living. They did not want a sunburnt country.

The cities, most of them, suffered from the Federation Drought. They coped largely because, by today's standards, they consumed little water. About three of every four houses in Australia had no sewerage. At a guess, two of every three Australians bathed only once a week, and family members used the same water, one after the other. City residents did not expect to water their lawns in a drought, while their vegetable gardens - more extensive than in today's back yards - were often watered with a bucket.

It may be argued that the drought would have been less harmful if there had been a mining boom like ours. In fact, extending from Mt Lyell in Tasmania to Kalgoorlie in Western Australia and Charters Towers in Queensland, a vigorous mining boom was bubbling alongside the drought.

That boom was not enough to tint the overall picture, for the inescapable fact was that Australia's economy depended, then more than now, on adequate rains. Today Australia has prosperity alongside a severe drought. In 1900 that combination was impossible.

This is one of the stark differences between that drought and this. The economy today is so buoyant that governments can afford to pay for drought relief - more than has been so far given. During the Federation Drought there was little money to pay for drought relief.

Though the total Australian economy had been hit by the bank crashes in 1893 and by falling commodity prices in the next few years, the long drought deepened and prolonged the Depression. Europeans did not wish to emigrate to such a drought-stricken land. In the 10 years from 1896, Australia's net gain from migration averaged a pitiful 500 people a year. Once the drought was over, immigration soared.

Such a punitive drought spurred a crusade to build large reservoirs to supply cities, towns and farms. It led to a new emphasis on irrigation. That great national era of dam-building finally came to an end around 1980, after multiplying the available water a thousandfold. This present drought in the cities and large parts of the farming country is more manageable because of what earlier Australians constructed.

It is very difficult to compare even the bare statistics of droughts since each has a different shape and longevity. As a broad generalisation, this drought in most farming areas has run for only two-thirds of the time of the Federation Drought: say five years compared to eight or nine years. But this drought is persisting.

In Victoria this drought is entrenched, having commenced about nine years ago. But it is still too early to say whether, measured in rainfall alone, it is worse than the drought of 1894-1902. Significantly, Victoria has experienced many of its dry years during this latest half-century, and 2006 is likely to be one of its worst. Perth, like Melbourne, has its own pattern, and its recent run of dry years has been long.

The huge Murray-Darling Basin, the most productive rural area on the continent, has been hit particularly hard by this drought. This year the overall rainfall across the basin is not quite as low as in 1902 but the runoff into the Murray River is much lower. Here is the heartland of the present drought, indeed of several earlier droughts.

Maybe the majority of climate scientists are pessimistic about Australia's future climate. Public opinion has caught this mood, less perhaps from the scientists than from the way the radio and TV media condense and package the daily news. Public opinion believes that global warming and Australian droughts go hand in hand. Therefore the public will be surprised to learn that, across Australia as a whole, this year will not go down as one of extremely low rainfall.

The past 15 years of rising temperatures have not been a period of exceptional water scarcity. Ours is not the 15-year period receiving the lowest rainfall: that record belongs to the Federation Drought and its aftermath. On the other hand, the loss of water through evaporation is probably higher than in 1900, though there are no nationwide statistics to confirm this.

This drought, with its bushfires, is formidable. More important, it is not yet over. But this is no justification for exaggerating its magnitude. The Federation Drought, in its social and economic impact on the nation, was far more devastating. That verdict will probably remain true, even if this drought continues for several years.

Source





Gloves off for the rumble in the blackboard jungle

Kevin Donnelly says school education has become a burning issue that will only get hotter in 2007

Education has certainly been a barbecue stopper in the past 12 months. On these pages, as well as across the media more generally, barely a week has gone by without debates about topics as diverse as Australia's second-rate ranking in international maths and science tests, the dumbing down impact of outcomes-based education and the fact that state governments are under-resourcing schools; both government and non-government.

At the start of 2006, Prime Minister John Howard entered the debate with his comments about the parlous state of history teaching in our schools. Not only are students taught a black-armband view, but as a consequence of the "new history", the focus is on victim groups and students no longer celebrate the grand narrative associated with our growth as a nation.

The Prime Minister entered the culture wars with his complaints about the destructive impact of postmodern gobbledegook on English as a subject, especially literature. The moral and aesthetic value of literature is lost as students are made to analyse texts in terms of power relationships, and graffiti and SMS messages are on the same stage as Shakespeare and David Malouf. It is significant that David Williamson, somebody not normally associated with the PM's conservative agenda, also publicly criticised the way classics are undermined as a result of forcing students to interpret literature through a politically correct, ideological prism.

While much of this year's debate has focused on national issues - such as the need for plain-English report cards, the introduction of assessment of students on a five-point scale of A to E and the viability of a national curriculum - state and territory issues have also been prominent.

Such were the concerns in Western Australia about the destructive impact of extending outcomes based education into years 11 and 12 and the inept and insensitive way the then state education minister, Ljiljanna Ravlich, handled the situation, that Premier Alan Carpenter was forced to hose down the issue by postponing the introduction of the new certificate and, eventually, by dumping the minister from the portfolio.

In Tasmania, as a result of teachers being forced to adopt what was termed essential learnings - an approach to curriculum where traditional subjects are replaced by generic skills such as world futures and social responsibility - the education minister responsible, Paula Wriedt, nearly lost her seat at the state election and, like Ravlich, was eventually demoted.

While some educationalists, such as the Adelaide-based academic Alan Reid, argue that the education debate is being fuelled by social conservatives, the fact is that in Tasmania, much of the fight against essential learnings has been led by the local branch of the Australian Education Union. The union argued that teachers were being drowned in a bureaucratic, cumbersome and confusing curriculum regime that destroyed the joy of teaching.

As is evident on Perth-based internet site www.platowa.com, much of the criticism of OBE has been led by classroom teachers of various political persuasions. That opposition to OBE transcends political boundaries is highlighted by criticisms made by the NSW Labor Education Minister, Carmel Tebbutt, midway through the year in support of the PM's stance, and the way both Kevin Rudd and new federal shadow education spokesman Stephen Smith are echoing widespread concerns about falling standards and a lack of academic rigour in the curriculum.

There is no doubt education will continue to be a significant issue in 2007, especially given the coming federal election. As with this year, much of the debate will focus on the value of OBE and whether students are receiving a sound education. Debates about the impact of the culture wars on subjects such as history, English and science will alsocontinue.

What other issues might be on the agenda? While not receiving much publicity over the past 12 months, except for calls for increased accountability, the need to attract teachers to the profession and to properly reward them will be seen as vital.

Research by Andrew Leigh and Chris Ryan, both academics at the Australian National University, suggest that teacher quality, as reflected by the academic aptitude of beginning teachers, has fallen. Teacher surveys carried out by the Australian Education Union show that many of those who have recently entered the classroom do not see teaching as a long-term commitment.

Teachers need to be paid more and better supported in their professional development. Instead of having to re-invent the wheel by designing their own syllabuses, teachers should be given clear, concise road-maps of what to teach, and be given more time to mentor one another.

While accountability is important and better teachers should be rewarded and underperforming teachers dealt with, it is vital that any proposed system is not overly intrusive and bureaucratic and that the complex and demanding nature of teaching is recognised.

Coupled with properly rewarding teachers is the need to give schools the power to hire and to fire staff and to allow decisions about the school curriculum and management, as far as possible, to be made at the local level.

Supporting parental choice in education will also be on the agenda in 2007. The fact that about 40 per cent of year 11 and 12 students now attend non-government schools - and given the attraction of selective government schools, especially in NSW - it's obvious parents want to choose where their children go to school and that a "one size fits all" approach no longer works.

In the US, school vouchers, where the money follows the child, are increasingly popular in areas such as Washington DC and Milwaukee and the reality is that Australia already has a de-facto voucher system - depending on which non-government school the child attends, both state and federal governments subsidise a percentage of the cost.

As a general rule, while education is often debated, Australians tend to spend more time discussing sporting events and sportsmen and women such as Shane Warne, Ian Thorpe and Cathy Freeman. In 2006, education became a topic of strong media interest and public debate, and 2007 will be no different.

Source




Most lethal killer found



Scientists believe they have captured the most lethal creature on the planet in north Queensland. The tiny but deadly irukandji jellyfish is believed responsible for killing American tourist Robert King off Port Douglas five years ago.

In a piece of detective work worthy of Hercule Poirot, stinger expert Lisa-Ann Gershwin has spent years scouring north Queensland waters for the highly venomous and near-invisible culprit. Her breakthrough came on New Year's Day when the previously unknown, peanut-sized creature, trailing four tentacles, ghosted under her spotlight about 8pm off the jetty at Mission Beach. Comparing stinger cells taken from Mr King at Cairns Hospital in 2002 with the newly-discovered species, researchers found a perfect match.

"This is the killer," Dr Gershwin said. "We knew it existed but we have never before captured one live and healthy. These are a wicked, highly venomous, dangerous animal, that drop for drop are the most lethal on the planet."

The high-profile death of Mr King off Port Douglas in 2002 sent shockwaves through the state's multimillion-dollar tourism industry and led to a taskforce to investigate the little known irukandji. Irukandji syndrome, caused by other species of the tiny jellyfish, is known to cause excruciating back pain, sweating, and nausea, but until the 2002 incident, not death. "We know almost nothing about these animals," Dr Gershwin said. "But now, with this new specimen, we can start to find out more."

Source

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