PARIS Last month was the second- warmest September ever registered globally in an exceptional year "almost certain" to become the hottest on record, the EU climate monitor Copernicus said on Tuesday. The Copernicus Climate Change Service (C3S) said the average global temperature last month was second only to September 2023. September saw "extreme" rainfall and destructive storms in many parts of the world, events that are occurring with greater severity and frequency as global temperatures rise