1 January – Croatia adopted the euro and became the 20th member state of the eurozone.[1] They entered the Schengen area and became the 23rd European union member to do so, and the 27th states to accede to the union overall[2]
25 April – The Carbon Border Adjustment Mechanism, a carbon tariff on carbon-intensive products imported to the European Union from countries lacking sufficient greenhouse gas reduction measures of their own, a key part of the Fit for 55 package, is approved.[4][5]
