At the United Nations Climate Change Conference (COP30), which began on November 11, 2025, in Belém, Brazil, climate disinformation and information integrity are officially on the agenda for the first time. Brazilian President Lula emphasized the need to combat climate denialism and labeled COP30 the “COP of truth” amidst rising climate falsehoods. U.N. Secretary-General António Guterres called for a collective effort against misinformation, online harassment, and greenwashing.
A significant development during the conference was the signing of a declaration by twelve nations—including Belgium, Brazil, and Canada—to commit to tackling climate disinformation and promoting accurate climate information. This declaration, crafted with input from civil society, emphasizes the importance of reliable information for effective climate action and urges governments and the private sector to take action against misinformation.
Additionally, the Global Initiative for Information Integrity on Climate Change was established to address climate-related disinformation, bringing together various stakeholders to support and protect those reporting on climate issues. The initiative aims to foster a resilient media ecosystem and urges funding and cooperation to enhance information integrity. Overall, COP30 marks a pivotal moment in addressing the challenges posed by climate disinformation.

