Since the 1960s, global GDP has been rapidly rising and living standards have reached record highs. But something else has been rocketing up too – carbon emissions. For years, scientists and economists have been asking: is it possible to grow without heating and polluting the Earth? And as the climate becomes more unstable, the issue is only becoming more urgent. Madeleine Finlay hears from two economists arguing for a change in how we measure a country’s success. Nick Stern is professor of e...

Madeleine Finlay sits down with science editor Ian Sample and science correspondent Nicola Davis to discuss three eye-catching stories, including the impact of a powerful psychedelic on depression, answers on the death of Russian opposition leader Alexei Navalny, and an explanation to the mystery of why humans have chins Single dose of potent psychedelic drug could help treat depression, trial shows Was Navalny poisoning by frog toxin meant to send a message? Continue reading...

Barack Obama caused frenzy after saying aliens were real on a podcast - and was forced to clarify he had not seen any evidence of them in a statement posted to Instagram over the weekend. There is a long-running conspiracy theory claiming that the US government is hiding extraterrestrials at Area 51, a highly classified air force site in Nevada. Lucy Hough speaks to host of the Guardian’s Science Weekly podcast, Madeleine Finlay Continue reading...