Welcome to the first full episode of My World! This week: do protests work and can trees save the planet? And an exclusive interview with champion skateboarder Sky Brown. BBC My World is a brand new show for young people around the world, brought to you by executive producers Angelina Jolie and the BBC World Service. We've also partnered with Microsoft Education and BBC Learning to show you how the news is made, fact-check stories and spot fake news. Subscribe to #BBCMyWorld here: null