If there is one thing that is rapidly disappearing from today’s urban landscape, it is the trees -- many of them being cut down relentlessly to make way for roads, buildings, dams and the likes. But what can we do about those that have miraculously escaped the axe, apart from hugging them? Mapping them! Yes, you read that right. Today, various tree mapping campaigns are on that is calling on everyone to help map the trees in your neighbourhood. This data is of immense importance for further studies on urban ecology. So, what are you waiting for? Grab your phone and get mapping...