Veloso I, Guillaumier L. Between Opportunity and Regulatory Alignment: Challenges for Brazilian Green Hydrogen in Meeting European Union Standards. FAAP [Internet]. 2025 Dec. 29 [cited 2026 Jan. 28];21(2). Available from: https://publicacoes.amigosdanatureza.org.br/index.php/forum_ambiental/article/view/6156