In a judgment dated Thursday 12 April in case C-302/17, the judges of the Court of Justice of the European Union (CJEU) took the view that the former Slovak tax of 80% on the value of greenhouse gas emissions quotas sold or unused ran counter to EU law, as it did not respect the principle of the free allocation of almost all quota over the period 2008-2012.
In 2011 and 2012, Slovakia levied a tax of 80% on the value of greenhouse gas emissions quotas that were sold or unused by businesses,...