Please
join me in welcoming our special guest for today, Sue Travers, who
blogs at her new place, jumping aground, and at Traverselife.
In her profile she describes herself as, “Playing
around with words and photos has been missing from my life for too
long. Here, I'm exploring what fun it can be!” She's sharing some
amazing info about Australia for us today.
A cloud of zebra finches rises from their improbable home, flocking to a stunted, spindly bush amongst the dusty shrubs and trickle of water that passes for an oasis in this desolate, unforgiving landscape.
The Great Artesian Basin is the only reliable source of water throughout enormous areas of inland Australia, bores have been drilled since white settlers occupied the region. It lies under 23% of the continent, (some 1.7 million square kilometres) including large parts of Queensland, New South Wales and the Northern Territory as well as South Australia. The springs enabled Aboriginals to survive throughout the region for around 50,000 years give or take a few thousand years. The water is ancient - between a mere several thousand years up to nearly 2 million years old! Its existence now allows towns to flourish and vast cattle stations to operate.
The naturally occurring mound springs provide the only permanent water source in this arid region of South Australia. They're home to a number of unusual and rare plants, fish and other creatures and provide refuge for a range of animals in times of drought.
Despite their importance for biodiversity and their fragile nature, a massive uranium mine, Olympic Dam, is allowed to remove 42 million litres of water per day for free from the Great Artesian Basin which feeds the natural springs, resulting in a drop of pressure and complete drying up of the springs in some cases. This is in addition to coal mines and coal seam gas (CSG) which also use large volumes of the water. According to government estimates, the CSG industry alone could extract 300 billion litres over the next 25 years.
Australia, the driest habitable continent on earth, regularly experiences extreme, devastating droughts, encourages mining operations which extract more water than can be replenished. Coal seam gas, fracking, open cut coal mines and uranium mines are dotted above the Great Artesian Basin, all using the water, and disposing of waste - not always in the most desirable ways.
To read that companies "will be held accountable" and that they must specify how they'll respond to, and repair, a leak or spill doesn't inspire confidence.
As Murphy's Law says "anything that can possibly go wrong, does" except perhaps in the minds of politicians or the mining industry.
Is it worth the risk?
Image from: wetlandinfo.derm.qld.gov.au I took the photos above in SA near Lake Eyre. |
http://www.environment.gov.au/water/publications/agriculture/video-great-artesian-basin.html
http://www.abc.net.au/news/specials/coal-seam-gas-by-the-numbers/
http://www.theaustralian.com.au/news/nation/corporate-abuse-hits-great-artesian-basin/story-e6frg6nf-1225777245125
http://www.abc.net.au/4corners/stories/2012/05/25/3510948.htm
http://insidewater.ewater.com.au/2011/03/31/coal-seam-gas-in-australia/
Thanks again Sue for being with us, and sharing something so obviously important to you. Looking forward to seeing what you'll do in the 2013 Challenge!
Thanks again Sue for being with us, and sharing something so obviously important to you. Looking forward to seeing what you'll do in the 2013 Challenge!
.