By Newsbreak Producer Matthew Veeran - According to officials, at least 150 people have now died - and scores of others are still missing in northern Vietnam, as a super typhoon continues to bring heavy rainfall, landslides and flooding. Thousands of people were seen stranded on rooftops in some northern provinces, while others posted desperate pleas for help on social media yesterday. Matthew found out more about the devastation caused for this week's edition of the Greenscene - this report compiled by the BBC...