The country's greenhouse gas emissions have dropped by 6% due to the pandemic.
An Environmental Protection Agency and Sustainable Energy Authority of Ireland report for 2020, shows emissions from the transport sector have fallen by almost 17%.
However, those from homes are up by around 9%, as many people are staying at home.
Commenting on the figures Laura Burke, Director General, EPA said:
“We are at a pivotal point for our economy, and the recovery steps we take now will shape Ireland for the next decade."
"While these early estimates show a reduction in greenhouse gas emissions for 2020 as a result of Covid restrictions, this level of emission reductions, at a minimum, will be required annually".
"The emissions reductions in 2020 must be built on to achieve continual, substantial, year-on-year reductions, making the 2020’s the decade of climate action."
Full detail on the 2020 estimates is available on the EPA and SEAI websites.