THE world is edging into climate territory governments have spent years trying to avoid. A new UN Environment Programme report warns that the Paris Agreement’s 1.5°C warming threshold is likely to be breached within the next few years. That does not mean climate action has failed or that the target no longer matters. UNEP argues that humanity must keep any “overshoot” as low and brief as possible, as every fraction of warming raises the risk of extreme weather, ecosystem loss and irreversible tipping points. Adding to the concern, the World Meteorological Organisation says the El Niño strengthening in........

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