97Secondly, as regards the locus standi of ClientEarth, it must be observed that the applicants have submitted one and the same action. According to case-law which is now well established, where one and the same action is involved, as soon as one of the applicants has locus standi, there is no need to consider whether or not other applicants are entitled to bring proceedings except where considerations of procedural economy exist (see, to that effect, judgments in Case C-313/90 CIRFS and Others v Commission [1993] ECR I-1125, paragraph 31; Joined Cases C-71/09 P, C-73/09 P and C-76/09 P Comitato ‘Venezia vuole vivere’ and Others v Commission [2011] ECR I-4727, paragraphs 36 to 38; and Case T‑79/12 Cisco Systems and Messagenet v Commission [2013] ECR, paragraph 40).
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