Climate disinformation is strategically deployed to reinforce red-tagging narratives, portraying Indigenous resistance to mining, energy, and infrastructure projects as a threat to national security. In the Philippines, government agencies have repeatedly labeled Indigenous communities opposing large-scale mining operations as communist sympathizers or terrorists, a tactic known as red-tagging. This framing has been used to justify military deployments, legal harassment, and the suppression of protests in resource-rich ancestral domains. Environmental defenders, particularly from the Lumad and Igorot groups, report being subjected to surveillance, vilification in state-aligned media, and baseless criminal charges after speaking out against projects that threaten their land and livelihoods. Human rights organizations have documented how disinformation campaigns amplify these narratives, often circulating false claims online that link anti-mining activism to armed insurgency. These claims frequently lack verifiable evidence but gain traction through coordinated social media activity and pickup by pro-government outlets. Fact-checking initiatives have repeatedly debunked such assertions, yet they continue to influence public perception and policy responses, particularly in regions where mining concessions overlap with Indigenous territories. The tactic extends beyond the Philippines. In Latin America, similar patterns emerge where Indigenous opposition to hydroelectric dams or lithium extraction is framed as foreign-backed subversion. In parts of Africa, activists resisting oil pipelines or geothermal projects face accusations of undermining national development goals. Across these contexts, the conflation of environmental stewardship with security threats serves to delegitimize dissent and facilitate project approvals without meaningful consent. International bodies, including the United Nations Special Rapporteur on the rights of Indigenous peoples, have warned that red-tagging undermines free prior and informed consent—a cornerstone of Indigenous rights under international law. Despite these warnings, few governments have moved to dismantle the institutional mechanisms that enable such labeling. Legal reforms aimed at protecting environmental defenders remain stalled or inadequately enforced in multiple jurisdictions. Efforts to counter the disinformation remain fragmented. Whereas some civil society networks monitor and rebut false narratives in real time, they operate with limited resources and face increasing risks of retaliation. Platforms hosting the content have been criticized for inconsistent enforcement of policies against coordinated inauthentic behavior, though specific actions taken in response to these campaigns are not publicly detailed in accessible reports. As extractive projects expand under the guise of energy transition or economic recovery, the use of disinformation to silence Indigenous resistance shows no signs of abating. The absence of a coordinated, verifiable response from state institutions leaves affected communities navigating heightened risks without clear institutional recourse.