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…

Simone Rotella When it comes to understanding the ups and downs of liberal democracy, conventional research looks at drivers such as economics, emotions and education. But another area is just as crucial: neurology. After all, liberal democracy challenges our brain in ways that other political systems don’t. Where dictatorships offer certainty about the future –…