Business Recorder: South Asian cities are facing problems of decaying environment which include hazardous levels of air and water pollution and insufficient solid waste management. According to a report on Human Development in South Asia 2014, "Urbanisation: Challenges and Opportunities," these environmental threats have deteriorated the sustainability and liveability of cities in South Asia, besides the situation is being compounded by global warming. The report said: "South Asia is one of the least urbanised regions...