Cutting the amount of carbon dioxide released into the environment is an essential part of tackling climate change and there's an easy way to do it. Planting trees is a simple and effective way of trapping carbon in the atmosphere. But how many do we need to plant to make a difference? BBC My World reporter Nomia has been looking at the facts.
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.