Communication from the Commission, Environmental implementation review 2019: A Europe that protects its citizens and enhances their quality of life, COM (2019) 149 final. Study “The costs of not implementing EU environmental Law”, final report, DG Environment, written by COWI A/S & Eunomia Research & consulting Ltd, 2019.
https://ec.europa.eu/environment/eir/pdf/study_costs_not_implementing_env_law.pdf