Environmental procedural rights before European courts: still searching for a common script or multiplying avenues of protection?

Environmental procedural rights are guaranteed by the Aarhus Convention, which the EU and the Member States have ratified. The Convention has been designed to leave room for interpretation. Since the entry into force of the Convention, the CJEU has been called on numerous occasions to rule on its interpretation and the relevant implementation of EU law. The ECtHR has also previously relied on the Convention in several judgments. This post zooms on one CJEU judgment and two ECtHR judgments delivered in 2021, and looks back at how the two European Courts dealt with procedural rights: are they searching for a common script, or are they perhaps offering multiple avenues of protection?