Former Liberal leader and treasury economist John Hewson has delivered a scathing rebuke of the Federal Government's climate change policy during an address to farmers and industry leaders.

Key points: John Hewson takes aim at the Government's policies and its "entrenched anti-climate sentiment'

John Hewson takes aim at the Government's policies and its "entrenched anti-climate sentiment' The former Liberal leaders argues that regenerative agriculture can offset a large amount of future emissions

The former Liberal leaders argues that regenerative agriculture can offset a large amount of future emissions Academics say government policy might be less influential than market forces as companies move faster to reduce emissions

"We don't have a sense of urgency to achieve these emission [reduction] targets," he told the Australian Farm Institute Roundtable in Canberra.

"There's an entrenched anti-climate sentiment in the Government at the moment, and indeed government ministers are not turning up at events if they have the word 'climate' in the title.

"The comments made by the Prime Minister at the UN, that we are going to meet our emissions targets, was a gross misrepresentation and was staggering for someone in his position."

Dr Hewson, who is now the chair of the Business Council for Sustainable Development, said he would like to see regenerative agriculture form part of the solution.

"Regenerative agriculture can offset a very significant portion of our future emissions, and I'm staggered that is not being recognised by the National Party," he said.

"It would have a lot of benefits for regional Australia; a farmer could earn carbon credits or a stream of income for sequestering carbon on their farm."

Is agriculture prepared to be part of the solution?

Large multinational food companies are moving to adopt new targets to reduce emissions in line with the Paris Agreement on climate change.

The Sustainable Food Policy Alliance, which represents companies like Nestle, Unilever, Mars and Danone, has backed calls for companies to use their political influence to push governments to implement a science-based policy agenda.

Some academics believe this marks a shift in the global effort to combat climate change, when companies are moving faster than governments to reduce emissions.

Richard Eckard, a professor of agricultural sciences at the University of Melbourne, said government policy might be less influential than market forces.

"In the past six months, I've been back and relooked at all these companies' sustainability statements and noticed that they've all switched to absolute emission reduction targets in line with the Paris Agreement," he said.

"Some of them have interim steps to get there, but all of them are aiming for carbon-neutral food production by 2050."

To achieve this goal, some companies agreed to use 100 per cent renewable energy, while others committed to reducing their emissions.

Industries that cannot reduce their emissions will have to explore using carbon offsets to meet these targets, which is creating a lot of demand.

"I think it's quite notable that of the 100 largest economies in the world, 69 are companies, not countries," he said.

"And we've been looking to government for leadership — in actual fact, maybe it's these companies that are sending us the signals that need to be responded."

While there are possibilities for agriculture to form part of the solution, with its ability to sequester carbon, the current carbon market in Australia is fragmented and immature.

Dr Hewson supported plans for a HECS-style scheme that would see farmers receive a baseline carbon reading to help remove barriers for those looking to explore carbon farming initiatives as the market developed.

James Madden has created what is believed to be the first carbon-neutral meat brand in the world. ( Supplied: Flinders and Co )

Can meat industry reach carbon-neutral goal?

Meat and Livestock Australia is moving towards a goal that would see the industry become carbon neutral by 2030.

However, experts believe it will fall short due to a lack of research and funding.

"Achieving that target will be a very tall order," Professor Eckard said.

"As an industry, they don't have the funding to allocate to create a low-methane cow — that's a long way off."

Professor Eckard said the industry had only 10 to 20 per cent of the funding needed to develop low-emissions solutions for livestock.

It will require partnerships with multinational companies to fund that gap in research and require academics to collaborate across countries with long-term projects.

"One problem is the short-termism that we have towards research with one-, two- and and three-year contracts — these are 10 to 20-year problems," he said.

"And we're not alone, we're not the only country with this problem, Brazil and New Zealand have a bigger problem than us.

"There is no one organisation that can fund this solution, we need a coordinated long-term effort."