Today the Northern Australia Land & Water Taskforce will release its latest Report into the development of large-scale agriculture in Australia’s north. The Taskforce has effectively put the kybosh on any expansion of irrigated agriculture and the development of dams across our great northern rivers.

The idea of developing a bounteous “food bowl” that could ensure Australia’s food security long into the future has been a recurring political dream for decades.

But like most dreams they usually get mugged by the grim realities of science and economics – or just turn into nightmares. And there is no shortage of examples of previous failures of broad-scale agriculture across the north to fuel a healthy skepticism about these “grand visions”.

But the lure of grand northern development for politicians and the uninformed is simple and attractive – “We’ve got lots of water, lots of land and there must be something we can grow on that.”

It is an easy political sell – most Australians know so little about anywhere west of the Great Dividing Range or north of the Tropic of Capricorn that you could tell them that kangaroos hopped down the streets of Darwin, Broome and Cairns and they’d believe it.

The Land & Water Taskforce is the most recent of a long line of government enquiries and investigations that have tried to find a way to unlock the mysterious economic potential of northern agriculture.

Established by John Howard in 2007, the first chair of the Land & Water Taskforce was southern farmer and politician Senator Bill Heffernan.

Shortly after his appointment in 2007 Heffernan told the Sydney Morning Herald about his personal “grand vision”:

“This is not about the next election, about the next 10 years. This is about Australia in 80, 100 years time. This is about the nation’s long-term survival,” says Heffernan, the outspoken Liberal senator who promises to prosecute the cause not with bulldozers but scientific brainpower.

“Two-thirds of Australia’s freshwater flows down the northern rivers, compared with less than 5 per cent for our sadly-depleted southern waterways. Because of the way the country was settled they have never been properly tapped.”

But for all Heffernan’s skills as a booster of broad-scale agriculture and development in the north he was dumped as Chairman of the Taskforce soon after the Rudd government came to power.

And reality started to bite big-time as the science came in.

As NT Environment Centre Coordinator and Taskforce member Stuart Blanch told the ABC in September last year following the release of a key CSIRO report into water resources in the north:

“…the report shows that during the dry season there is not enough water to sustain large scale irrigation.

“It says that northern Australia will never be the food bowl of Asia, simply because we simply don’t have the amount of water and land up here to spread irrigation without doing major damage to our rivers, and to the countryside.”

But for many in the north there is little new in the Report’s recommendations – there has long been a healthy skepticism about these grand visions in these parts.

As Bruce Davidson pointed out as long ago as 1965 in his thorough examination of the prospects of northern agricultural and pastoral development in his book, The Northern Myth, it is not just about land and water:

“Unless it can be established that a given combination of land, water, capital and labour in northern Australia would produce a larger output than the same combination of labour and capital with land in some other region of Australia…it cannot be said that land and water are being wasted in the north.

“Politicians, with the support of the press, have taken advantage of the peculiar fascination northern development has for the Australian public to advocate northern development…but neither the politicians nor the scientists have examined the cost of this development.”

A year later in his book The Struggle for the North, J. H. Kelly wrote:

“The fact that these northern rivers discharge an enormous annual flow into the sea does not, of itself, provide economic justification for the harnessing of and particular northern river for large-scale irrigation…this lesson was learned at great cost in the South; such a mistake must be avoided in the north.”

But all is not (totally) lost – as the NT Environment Centre’s Stuart Blanch told the ABC, we need to be a bit more imaginative in our assessment of the north’s potential. The north can be:

“… a great place for nature conservation refuge, it can be a great storer of carbon in its forests, it can be a great global tourism and fishing icon,” he said.