IEJC, in my research, examines the ways in which two Indigenous communities—Tharus from Chitwan, Nepal, and Tigua (Tiwa) Indians from El Paso, Texas, USA—located in two different time zones (almost 12 hours difference) and geographical locations (the USA in the global north and Nepal in the global south) engage in environmental justice with regard to local, national, and global environmental actions and policies. Additionally, the study seeks to determine the ways in which international organizations (particularly UN agencies), INGOs, and NGOs influence these communities. This study stands to contribute to the fields of RWS and TPC, as exploring similarities and differences across two aforementioned Indigenous communities in a transnational context can support the development of a theory of Indigenous Environmental Justice Communication that can be applied globally while being locally relevant.