Jayb,

The Greenies can no longer ignore devastation of whole world ocean fish and ecosystems and impact on seafood dependent people and animals caused by sewage and land use nutrient overload pollution proliferating harmful and invasive algae.

Genuine environment-concerned people will understand need for pro active action to actually reverse the devastation that has already occurred and which is continuing to occur, instead or trying to conserve it.
How can ongoing damage be conserved?

The relevant water harvesting and aqueduct system is designed to help the environment and not cause significant damage.

Aqueduct means no need for massive earthworks for canals.
Steel piles with drilled underground foundation and cable suspension will avoid impact on wildlife and will cross natural rivers and streams without disturbance.
Wildlife can pass underneath.

Camouflaged epoxy-coated steel aqueduct will blend in with natural surroundings and be virtually rust and maintenance free.

Initial prefabrication means this aqueduct could be dismantled and moved if damage to the environment was occurring.

Water would be harvested in high country by remote control before it reaches rivers, this ensuring Gulf rivers keep flowing, but without excess water usually wasted into the Gulf.

Water redirected from the system will help drought stricken wetlands en route and help the Coorong.
The Coorong is supposed to supply the food web feeding local and migratory animals from the Indian, Southern and Pacific oceans. This means help for many fish and bird species, already involving mass starvation of mutton birds along coast of 4 states.

How could Greenies justify saying no to overcoming nutrient pollution feeding algae that is devastating seagrass food web nurseries and also changing the weather and climate?

Just wait till the Greenies realize the algae climate link situation. It is inevitable they realize. It is inevitable solutions be put in place, including rehabilitation of the Coorong ecosystem.

Of course there is need to engage in care and rehabilitation of the whole of the water ecosystem of this planet.

And thousands or presently unemployed refugees could help make it happen.

Paul1405,

I don't feel you are opposed or knocking.
I appreciate opportunity to explore any concern, doubt, questions or sensible challenge.

As for viability, this is about managing whole oceans of this planet that are not being managed at present.
Obviously it takes money to deal with such management. No countries in the world have money available to manage whole oceans.

I think managing whole oceans is a United Nations or similar institution responsibility. Hungry people and nations cannot be united.

I think there is need for new money that will stimulate existing national economies of all nations. All nations have rivers running to oceans. All people breathe oxygen from generated in oceans.
I think all nations would appreciate review of world fiscal policy.

Fiscal policy can surely be modified or amended by the G8, WB, IMF, UNDP, etc. Remember, nothing sensible is impossible.

Even nutrient trading is possible.
Google: nutrient trading. But remember it's city and town sewage nutrient involved in the total nutrient loading, not just nutrient from farming.

There is need for major sanitation worldwide as well as retro fitting to update sewage treatment involving nutrient management.

The plumbing industry is capable of employing millions of people from all levels of all economies, including from the bottom of developing economies.

Science is already capable of harnessing nutrient to grow algae for biofuel for jet aircraft and ships and vehicles.

If coupled to inland rail the suggested aqueduct might have supply of city sewage nutrient concentrate that could turn the aqueduct into a huge algae farm, to produce biofuel.

The number of refugees available actually fills the labour shortage gap for the hot desert-like inland of Australia that most coastal workers tend to avoid.

I think all that is needed really is leadership at government and international government level.

(P.S. I may soon reach my post limit but will return)

I like the 'out of the box' thinking and big ideas.
I think we need smart thinking now more than ever.

I like the idea of turbines and power generation from the flow of water through the pipes, and also generators on train wheels.
Why can't we draw power while a train increases speed, and then generate power and feed the grid when traveling at speed?

If I was in charge of jobs and training I'd start by having 'work for the dole' people assembling portable housing.
I wonder how cheap and good we could make/assemble them on a mass scale with built in solar panel and battery pack kits?

Another idea I though of, (and I'm not suggesting we do it but its just an idea I'll put out there to see what others say.)
We have capitalist education (private schools and university) with a socialist base level, right? (public schools)
And we have capitalist healthcare (private hospital cover) and a socialist base level, right? (public hospitals)

So why not extend that thinking to jobs (and training)?

I'm not suggesting this because I want socialism by the way, but for the exact opposite reason which is to protect the system from imploding from out of control welfare and the 'whole nation' being forced into 'absolute' socialism.
Also to mass train people at a lower cost and help those Aussies who fall between the cracks to actually do better for themselves in life.
To give people skills, empower them and make them smart.
We have to stop the 'free ride mentality', it's unsustainable.
Wouldn't it actually give incentive for Australian citizens to work harder and smarter and do better for themselves?
The system in it's current form isn't sustainable, fair, practical or productive.

Paul,

0.21% might seem small, but when you consider that each AS then brings in on average 1 family member, over 10 years you end up with nearly 1m unemployable dole bludgers costing $30bn a year to feed, house and educate.

Plus, there is no indication that even with an intake of 50k, that many more that don't get a free greens card will still try to make an illegal trip.