Dublin Airport was Ireland's biggest polluter in 2021 according to data revealed at the COP27.
Last year the country's largest transport hub was responsible for just over one million tonnes of greenhouse gas emissions. It was not the only Dublin location that was among Ireland's biggest contributors polluters.
Other locations included Drogheda Cement Plant in second place, Ballyconnell Cement Plant in Co Cavan third and Dublin's road network coming in at fourth. Traffic in Dublin accounted for 773,000 tonnes of greenhouse gas emissions last year.
