Fine Gael says it will ring fence €2 billion of Carbon Tax revenue for retrofitting if returned to government.

That represents one-third of the revenue that's expected to be generated by the tax by 2030.

The party says the proceeds will go towards a National Retrofitting Plan, which will try to develop a more structured approach to the upgrade of homes and buildings, including easier financing options.

Fine Gael has also committed an additional €244 million of Carbon Tax revenue towards the Midlands' transition away from peat burning.

That includes a retrofitting programme for homes in the region, as well as retraining for Bord na Móna workers and investment in the restoration of bogs and natural habitats.

Fine Gael's director of elections, Paschal Donohoe, said the country needs to reduce its emissions while ensuring that nobody is left behind.

He said the most recent Budget was proof that Fine Gael was serious about tackling climate change.

He said the party had spent most of its time in government dealing with "the greatest economic crisis to hit the country in decades". He said, as a result, there was no money available for investment of this kind until recently.

He said this was a period of time that Fianna Fáil wanted to consign to the past, while "reheating" the policies that got the country into that position.

On climate in particular, he said Fianna Fáil and Sinn Féin were "at best vague" about their plans, while he said the Green Party was strong on ideas, but weak on implementation.

Richard Bruton said making change on emissions was about "careful planning and painstaking implementation" and that Fine Gael was the only party with a proven track-record of achieving that.

He pointed to the country's economic recovery over the past decade, where he said there was "no silver bullet" but instead many small, careful steps.

Mr Bruton said many may see Fine Gael as the "porridge on the cereal shelf" because of its focus on detail, but that it got the job done.