The best known modern exponent of the philosophy of Advaita Vedanta, who tied it to the practice of persistent Self-Inquiry, is Ramana Maharishi, the Sage of Arunachala.
We are living on the legacy of our children and have a duty to perform and preserve the Earth. Also when we took birth we did see a lot of birds, trees and animals around and therefore by the time we die, we should certainly leave more birds, trees .nimals around us and a better tommorrow for our children.
There is a famous saying by the Great Mahatma , “There is in this world enough for everyman’s need but not enough for a man’s greed”. The spirit of sharing and caring is gone, greed has overcome everything 2% of the population is enjoying 90% of the wealth and the rest are meek watchers.