Shared river systems, shared vulnerabilities, and shared futures mean that India and Pakistan must set aside hostility and cooperate on vital planetary issues. A rapid analysis released on August 7 by the World Weather Attribution network found that human-induced climate change made Pakistan’s monsoon rainfall 15% heavier. Both India and Pakistan struggle with ineffective or non-existent early warning systems and disaster preparedness. Of late, India has been warning Pakistan about cross-border flooding and heavy rains in the Tawi Sutlej and other major rivers on humanitarian grounds. Shared river systems, shared vulnerabilities, and shared futures mean that India and Pakistan must set aside hostility and cooperate on vital planetary issues.