Recent investigations have uncovered that Exxon Corporation provided financial support to various rightwing think tanks, including the Atlas Network, to promote climate change denial across Latin America. This funding, which included translations of denial literature and support for events featuring climate skeptics, aimed to create doubt about climate science and discourage support for international climate treaties. The documents, obtained by DeSmog, highlight a strategic effort by Exxon to influence public opinion and policy in developing nations during critical moments of climate diplomacy. The repercussions of this campaign are still felt today, as global emissions continue to rise and the impacts of climate change become increasingly severe. With upcoming climate negotiations in Brazil, the historical context of Exxon's actions raises concerns about the effectiveness of current climate policies and the need for urgent action.