Dublin Airport is the first airport in Ireland to achieve carbon neutral status.
The airport has reduced its overall carbon emissions by 25 per cent between 2013 and 2019, despite a 63 per cent increase in passenger numbers during the same period.
The airport has adopted a range of measures in recent years, including the use of building management systems, LED lighting, and a pilot solar farm project.
In 2019, Dublin Airport had reduced its energy consumption by 48 per cent compared to average levels between 2006 and 2008.
The airport also committed to net zero carbon by 2050 last year along with almost 200 other European airports in a landmark move for the airport industry.