Myself Harish Saroha,an academician in India and teaching history from last 13 years,My area of Intererst is Heath,Sanitation and waterwork in colonial India and Sustainable growth .I also have writtern various research paper on Enviornmental cirisis and Public Health. I am a freelancer Enviornmentalist And working in Indian subcontinent With the colloboration to various NGO and givernment project for the protection of clean Air,clean water and Clean Land.. Because in Twentieth first century the protection of natural resources is a greal challenge.