As part of our series on how journalists make the news we explain more about developing news stories - these are stories that grow and change over time, because when new facts, evidence or themes emerge, journalists expand their coverage and update stories to inform the public. This video is about the bushfires in Australia in 2019 and 2020 - and how they became a massive international story. BBC My World is a 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 #BBCMyWorld #Australia #Bushfires