Hanoi, Jan. 15 -- The draft documents for the 14th National Party Congress underscores the requirement for sustainable development based on a harmonious balance between economic growth, social progress and environmental protection, with the last identified as one of the focuses closely linked to the quality of growth and people's living standards. Dr Tran Van Mieu, Vice Chairman of the Vietnam Association for Conservation of Nature and Environment, said placing environmental protection at the heart of the national development strategy reflects a significant shift in development thinking, in line with both practical demands and global trend. Mieu noted that experts and scientists working in the environmental field have clearly witnessed po...