Nationals Senator Barnaby Joyce said today that meeting Mr Ross Garnaut's target should be easy.

"It'll just require getting about 10 million Australians to go and live somewhere else or reducing the average aspirations of the current population down towards the aspirations of the average person in Chad.

"It will be the case, if Mr Garnaut's target is met, that the economy will have descended into complete and utter turmoil and I strongly believe that Australia's affection for carbon emission reduction will fly out the window when poverty starts walking in the door.

"If Mr Rudd's former colleague, Professor Garnaut, wants us to seriously accept a 70-90% cut in emissions by 2050 then I have serious questions about Mr Rudd appointing him as a relevant and rational arbiter on this issue.

"You have to take this decision home to the kitchen. It means a loss of jobs and the inability of the average working family or pensioner to be able to meet basic family budgetary items such as power.

"What we should be looking at quite seriously now are such things as bio-renewable fuel, to reduce carbon emissions and put downward pressure on fuel prices. Fuel is now predicted to rise to about $1.60/litre.

"How much higher does it need to go, and I've been saying this for quite some time, before we seriously start pushing ethanol, at around 85c/litre, to be widely accessible in blends up to 85%, to place downward pressure on prices and allow people the freedom to be allowed to drive a car?"