Environmental net-activism on the online petition platforms Avaaz.org and Change.org: some observations. Intercom - Brazilian Journal of Communication Sciences, São Paulo, v. 46, p. e2023105, 2023. DOI: 10.1590/1809-58442023105pt. Disponível em: https://revistas.intercom.org.br/index.php/revistaintercom/article/view/3571. Acesso em: 25 nov. 2025.