A Guardian article reports Ed Miliband's warning at the Cop31 summit in Turkey that the climate crisis threatens every country's national security, that an overshoot of 1.5C of warming is now inevitable, and that fossil fuel shocks such as the Iran war's oil price surge are now the norm. Xi Jinping, Narendra Modi, Emmanuel Macron and Friedrich Merz are skipping the talks, and campaigners say UK moves like approving the Jackdaw gasfield set a poor example.