China’s most advanced aircraft carrier, the Fujian, has entered service days after a grand commissioning ceremony overseen by Chinese leader Xi Jinping, state media said. The Fujian, the country’s third warship, is equipped with electromagnetic catapults which will allow planes to be launched at higher speeds. Its launch marked a significant step forward for Beijing,…

17 hours ago Esme Stallard,Climate and science reporter, BBC News and Matt McGrath,Environment correspondent, BBC News Pablo Porciuncula/AFP Brazilian President Lula warned of “extremist forces” when he addressed world leaders at the global climate summit US President Donald Trump has been criticised by world leaders for his stance on climate change, ahead of the global…