Sinn Féin said today it would seek to have the controversial section of the M3 motorway diverted away from the Hill of Tara if in government.
Outlining the party's environmental policies, Dublin TD Aengus Ó Snodaigh said: "The current Government's track record on protecting Ireland's archaeological and architectural heritage is disgraceful."
Mr Ó Snodaigh said: "Under the so-called Environment Minister Dick Roche, they have pursued a relentless, no-holds barred campaign of destruction, as they seek to plough roads and motorways through historic sites, allow the sale of priceless historic artefacts, which are rightly the property of the Irish nation, and neglect and let fall into ruin key historic buildings which should be promoted as major tourist attractions."
He said that while Sinn Féin fully supports the upgrading of the country's road this does not have to be done at the cost of the wholesale destruction of the environment or precious heritage.
Environment spokesman Arthur Morgan said the party would pursue a legal and diplomatic campaign to close the Sellafield nuclear plant in Britain if in government.
Mr Morgan said he believes higher cancer rates in Louth are directly linked to the nuclear reprocessing plant.
Sinn Fein had consistently said that the threat of a disaster resulting from a fire at Sellafield was a real and immediate danger and that the next Irish government must make it clear to the British Government that nuclear reprocessing at Sellafield has to cease, he said.
He also said Sinn Féin would prioritise the resolution of the current water contamination crises on an urgent basis and adequately fund an All-Ireland Safe Water Strategy to bring all water supplies up to the highest EU standard.