The 1996 Ganges Water Sharing Treaty expires in December 2026, and climate change is rewriting the rules. Bangladesh wants a new deal that reflects today’s reality: erratic rains, melting glaciers, rising salinity. India says talks will continue; but only within existing frameworks. Experts warn this isn’t just about numbers on a chart anymore. It’s about food security, ecosystems, survival. The next agreement must include scientists, economists, even sociologists; not just diplomats. Because rivers don’t care about borders. And climate doesn’t wait for paperwork. This renewal could set a global blueprint for how nations share water… or fight over it.