It's more nuanced than that. This article is about the US (a worse polluter than Ireland), but it shows only about a small difference because of offshoring emissions: https://www.noahpinion.blog/p/no-the-us-didnt-outsource-our-...
What is the point of comparing the US to Ireland? Perhaps compare it to something like the state of Oklahoma.
It's even more nuanced than that because the United States is made up of many different states, with many different energy policies. Ireland would most closely equate to the state of Massachusetts by population and economic size, and Massachusetts shut down its last coal plant almost a decade ago.