By 2050 the global population is set to rise to more than 10 billion people. But right now, 1 in 10 people are suffering from chronic hunger. So how do we reconcile a rising population with an already hungry world? Plus in the news, why scientists are one step closer to understanding autism, and we take a moment to say goodbye to the Philae Lander... Like this podcast? Please help us by supporting the Naked Scientists