Introduction
摘要
The world now is with a population load of 800 crore and the GDP (Gross domestic product) is 100 trillion dollars. A giant share of the population belongs to the Asia and African continents while the giant share of GDP belongs to the US and European countries. With the rise in the population size and volume of the economy there has been a parallel increase in the emissions of greenhouse gases amounting to 33,566,428 kilo tone only in CO2 putting a challenge to sustainable development.