I am living in Delhi for years now and seen much more pollution on the streets, parks, side walks, nearby garbage dumping areas, etc are there but for what? People use as they fit. We must know where we all human beings live in this world for living and surviving to protect ourselves is not not enough to save us. If there is no planet to live where will the humanity will go. People often plant only trees but what will it do. It will reduce some pollution and increase air quality. But its not enough to. Ake our planet smile as well we do. We should just increase the use of environmental friendly power source, factories, industries, vehicles, cooking, etc. We must not forget that animals, insects, plants, trees and humans are the most important part of the earth for living together. If the future will be like robots doing all the works for us then why are we living in the world we should all just die right now. Robots have nothing like human can do or understand. We understand that machines are the most important part of our life but don't make it do everything cause it can never do the works. Correctly like us if we made a mistake we can do it again while correcting the mistake last time was done. But machines does it again and needs more man's help then us.