Judgment of the General Court (Grand Chamber) of 10 September 2025.#Republic of Austria v European Commission.#Environment – Delegated Regulation (EU) 2022/1214 – Taxonomy – Economic activities in the fossil gas and nuclear energy sectors – Inclusion in sustainable economic activities – Investments – Contribution to the transition towards a carbon-neutral economy in accordance with the 1.5 °C objective fixed by the Paris Agreement – Objective of net zero emissions by 2050 – Substantial contribution to climate change mitigation and adaptation – Articles 10 and 11 of Regulation (EU) 2020/852 – Concept of ‘low-carbon activity’ – Significant harm to environmental objectives – Risks associated with serious reactor accidents – Risks associated with high-level radioactive waste – Risks associated with droughts and climate hazards – Precautionary principle – Technical screening criteria – Reduction of greenhouse gas emissions – Article 290 TFEU – Concept of ‘essential elements’ of a legislative act – Scientific evidence – Commission’s margin of discretion – Manifest error of assessment.#Case T-625/22.