A delegation from the UN's cultural body, UNESCO, arrives in Ireland today for a three-day visit to inspect the proposed site of a municipal waste incinerator in Co Meath.
The delegation is visiting the site of the proposed facility in Caranstown, near Drogheda, on foot of complaints received about its location beside the Battle of Boyne world heritage site.
A UNESCO spokeswoman said the main purpose of the mission was to review the impact of the planned incinerator on "the value and the integrity of the World Heritage property".
Private company, Indaver Ireland, was granted planning permission for the €85 million incinerator last year.
The UNESCO team will meet officials from the Department of the Environment, the Office of Public Works, Meath County Council and representatives of groups opposed to the incinerator. Indaver Ireland will also meet the UNESCO delegation.
UNESCO will also meet campaigners opposed the route of the M3 motorway because the Hill of Tara national monument.