When Nobel Peace Prize laureate, Professor Wangari Maathai, launched her ’Green Belt Movement’ in the 1970s in Kenya she could not have imagined that initiatives such as hers to plant trees on a large scale would become so prevalent in the 21st century. Today, governments and companies alike are pledging to plant millions, billions and even a trillion trees. Trees and forests serve many purposes and in an increasingly polluted and fragile world, there is much appeal in the positive act of planting a tree.
