Question juridique clé
Whether the cantonal judgment was an appealable interim decision under Article 93 BGG
Solution extraite
The judgment was an interim decision, but the appeal was admissible because postponing review until after the EIA would cause an irreparable disadvantage.
Motifs extraits
The ordered environmental assessment would already be carried out before a later appeal could be brought; the burden could then no longer be undone, so Article 93(1)(a) BGG was satisfied.