We find out if we can mimic the power of plants to meet our energy demands. Plus we ask, could we use gene therapy for depression? Like this podcast? Please help us by <a href="https://www.thenakedscientists.com/donate">supporting the Naked Scientists</a>

Can gene therapy treat depression?

Each week we set out to solve one of the world's weirdest, wackiest, funniest and funkiest scientific puzzles. And along with the answer there's a brand new question to think about for next time...