Sustainability is a multifaceted concept with environmental, social, and economic dimensions, and its issues have manifested unevenly worldwide, disproportionately impacting those already facing marginalization. Addressing sustainability requires nuanced global perspectives; however, conversations on sustainability within CHI have traditionally been centered on the Global North. This online-only panel at CHI 2024 attempts to shift the focus to the Global Souths to nurture a more pluriversal perspective on sustainability by understanding the meaning, means, politics, implications, and rhetoric of sustainability from the standpoint of the Souths, amplifying voices that are often unheard and under-represented in HCI. The panel aims to draw a global CHI audience to have meaningful discussions, build a truly international community, and co-envision pathways to collectively address sustainability issues in/through HCI as they transcend geographical borders. © 2024 Association for Computing Machinery. All rights reserved.