Dick Smith has launched a new ad campaign, warning overpopulation will cause mass unemployment and poverty.

The entrepreneur's new advertisement, titled Overpopulation will Destroy Australia, will appear in six newspapers on Tuesday and Wednesday.

Appearing on Sunrise, Smith denied he was anti-immigration, but said migrant intake needed to be capped at 70,000 people per year.

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Dick Smith (pictured) has launched a new ad campaign, warning overpopulation will cause mass unemployment and poverty

The entrepreneur has bought space for the new advertisement (pictured), titled Overpopulation will Destroy Australia, in six newspapers starting on Tuesday

The businessman said at current growth rates Australia could be home to 100million people by 2100, causing mass unemployment and poverty.

'In a primary school class today 65 per cent of the kids there will have a job that hasn't been invented yet,' said host David Koch during a discussion on Sunrise.

'Most of their jobs will be selling coffee to each other,' Smith replied.

'I think you are going to have a lot of poor people like America, where they can't even support a wage,' he said.

Appearing on Sunrise , Smith (pictured, right, with David Koch) denied he was anti-immigration, but said migrant intake needed to be capped at 70,000 people per year

The businessman (pictured) said at current growth rates Australia could be home to 100million people by 2100, causing mass unemployment and poverty

Smith launched a controversial advertising campaign earlier in the year, warning unchecked population growth would lead to famine, disaster and war.

The latest ad, appearing in two newspapers today and four on Wednesday, claims eight out of ten Australians want a population plan.

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'Voters - ask your state and federal politicians to come up with a plan - otherwise, tell them you will be voting for the Sustainable Australia Party...or Pauline!' it reads.

'Don't let the wealthy donors to political parties destroy Australia as we know it today.'

Smith said the increase in immigration to over 200,000 people per year started under John Howard is unsustainable, and is calling for a cap of 70,000.

He accused the ABC of bias in September, claiming they portrayed him as anti-immigration in a panel discussion.

Politicians are afraid to speak up about immigration and overpopulation for fear of being labelled racist by the national broadcaster, he claimed.

Smith said he would support any political party that comes up with a population plan, but at present only Pauline Hanson's One Nation was addressing the issue.

Smith (pictured) launched a controversial advertising campaign earlier in the year, warning unchecked population growth would lead to famine, disaster and war

The latest ad (pictured), appearing in two newspapers today and four on Wednesday, claims eight out of ten Australians want a population plan

Figures released earlier this month show Australia is is growing at an annual pace of 1.6 per cent, double the average among the world's 78 richest nations.

A survey by the Australian Population Research Institute released in October found 74 per cent of Australians believe the country is 'already full'.

Of those surveyed, 54 per cent wanted a reduction in the annual migrant intake and 48 per cent backed a partial ban on Muslim immigration.