Fertilizer runoff into Chilika and Dal lakes causes algal blooms — nitrogen/phosphorus cycles overloaded by humans. Burning fossil fuels short-circuits the carbon cycle — 400+ ppm CO₂ vs 280 pre-industrial. Phosphorus has no atmospheric shortcut — strip-mined in Morocco, it flows one-way to the sea; 'peak phosphorus' threatens future fertilizer. Cloud seeding in Maharashtra tries to nudge the water cycle.