Judgment_paragraph 43 · Iberdrola, SA and Others v Administración del Estado and Others (C-566/11, C-567/11, C-580/11, C-591/11, C-620/11, C-640/11)

43As regards that second aspect, it should be noted that the principal objective of Directive 2003/87 is to reduce greenhouse gas emissions substantially. That objective must be attained in compliance with a series of sub-objectives and through recourse to certain instruments. The principal instrument for that purpose is the EU scheme for greenhouse gas emissions trading. As indicated in recitals 5 and 7 to Directive 2003/87, among the other sub-objectives to be fulfilled by the scheme are the safeguarding of economic development and employment and the preservation of the integrity of the internal market and of conditions of competition (see, Case C‑505/09 P Commission v Estonia [2012] ECR, paragraph 79).