Today we are living in the 21st century, we human are enjoying luxurious life by utilizing available natural resources. We have changed our lifestyle by consuming more and more natural resources, due to this over exploitation of the natural resources is taking place. We know that we will not have any alternative for our Earth even we are searching for new planet, we are finding the alternative for our Earth. The characteristics of various natural phenomena are being changing due to excess interference of human in natural environment. This century called it as technical era, we have developed various technologies which are playing a vital role in our development, even we have concentrated on industrial development, economic development, agricultural revolution, international trading etc. Through this activities, we have improved our economy, our lifestyle, and even we have minimized our pain. As a human being these developmental activities are seeming to blessing for us, without raising any doubt we all should accept that our all these development activities are very much essential for the better human development. But, if we look towards another side of our developmental activities which are creating tremendous pressure on ecology, ecosystem and entire environment. Now days we are facing various environmental challenges like climate change, global warming, ozone depletion, waste management, destruction of biodiversity, environmental pollution, land desertification etc. these challenges are not restricted towards any particular country or any particular region, we have understood that developed countries, developing countries and least developed countries all are going through these challenges, therefore we need to take serious action against this environmental issues for the better future of our next generations.