Progress and development comes with a price. They have been at the cost of nature. With industrialization, the natural wealth - forests, minerals, rivers and seas - have been progressively used. The use has been discriminate without concern to the environment. Within a few decades of this rapid destruction of nature, its adverse effects began to impact life everywhere. Particularly the loss of biodiversity, global warming, climate change, the fresh water crisis, and pollution of air, water and land have reached a crisis situation. Along with this environmental crisis, the awareness of the need to protect and conserve environment too has increased. Public interest, government initiative and private support have grown. A major area of strong initiative is the conservation of the remaining natural habitats.