At the conclusion of three days of hearings in the Senate corporate tax avoidance inquiry, Greens Leader Christine Milne says it is clear that tax avoidance by big business in Australia is endemic and that immediate steps must be taken to prevent further billions in tax being lost to the big end of town.

"Corporate tax avoidance in Australia is endemic. Big business is taking us all for a ride. We need more transparency, not more secrets," Greens Leader Christine Milne said.

Australian Greens Leader Christine Milne has thrown her support behind the Tasmanian Government’s investigation of a new data cable for the state and called on the federal government to help out if needed.

“This is one of those cases of ‘if you build it they will come’,” Senator Milne said.

“A fourth data cable connecting us to the world could bring costs down and attract more ICT business to the state.

With three French banks ruling out finance for Galilee Basin coal mines, the Australian Greens are calling on Australian banks to follow suit.

"These French banks are some of the world's biggest coal industry lenders and even they can see that investing in the Galilee Basin coal mines is environmentally and financially reckless," Senator Christine Milne said.

"It's time that Australian banks woke up and realised the environmental, climate, economic and reputational risks of investing in the Galilee Basin coal mines are dire.

Australian Greens Leader Christine Milne says the government's Energy White Paper needs to be binned along with the Warburton review into the RET, as both have been written to protect the profits of the Coalition's mates in the fossil fuel sector.

"This Energy White Paper is nothing more than a pamphlet by the wholly-owned subsidiary of the coal industry that is the Abbott government," said Senator Milne.

With reports today that 10 companies together channelled more than $30 billion out of Australia in a single financial year, Australian Greens Leader Christine Milne says her Senate Inquiry into corporate tax avoidance couldn't start soon enough.

"It's time to make sure that as a nation we've got the money we need for health, for education and to look after our environment, rather than see these multinational corporations organise themselves to rip off Australia," said Senator Milne.

Now that the community and the Parliament have forced the Abbott Government to back down on its backward and ideological policies attacking the sick, our universities, students and pensioners, it's time to intensify the campaign and force the Prime Minister to drop the attack on renewable energy, Australian Greens Leader Christine Milne said today.

"Minister Macfarlane asks who is creating the RET uncertainty now? There is only one answer. You are," said Senator Milne.

An independent costing requested by the Australian Greens and prepared by the Parliamentary Budget Office shows reducing superannuation tax concessions for the most wealthy would raise $10.16 billion dollars over four years.

"Government advisers have suggested it in the tax white paper, Labor says they'll support it and the Greens have got a costed policy that's ready to go. This would remove a tax haven and reduce the wealth gap between rich and poor, which would be a really great thing for Australians," said Greens Leader Christine Milne.

With the release of the tax white paper, you could be forgiven for thinking that the big end of town was doing it tough. But oh, how wrong you are. We've found 8 ways to raise revenue that the Liberal Party seem to be ignoring...

1. Abolish tax breaks for big mining

Currently big mining pays less for petrol than everyday Australians. How about if they didn't?

1. Check whether your energy retailer is one of the Big Three -  Origin, AGL and EnergyAustralia.

Origin want to slash the RET target in half, Energy Australia also wants to wind back our RET and AGL want to reduce the RET to protect their investments in their dirty brown coal power-station ‘Loy Yang A’.

2. Check out the energy retailer alternatives in your state

The Greens say any change to Australia's tax system must be progressive, correcting rising inequality and acting on global warming.

"The whole point of tax is to raise the revenue we need to pay for the Australian society we want: caring, innovative, healthy, and protected from the impacts of global warming" said Greens Leader Christine Milne.

"That means ending taxpayer support of polluting fossil fuels; it means actually collecting the tax owed by corporate Australia and multi-nationals, and it means closing tax loopholes for the richest among us.