For the world’s poorest people, climate change does not announce itself in parts per million. It arrives as a ruined harvest, a flooded shopfront, and lost learning as children are kept out of school. The most consequential climate-policy question for developing economies is not only how much carbon the world emits, but how quickly people, firms, and governments can prepare for shocks, recover from them, and learn to do better next time.  (Source. World Bank)