Srinagar, April 23 -- Every year on April 22, the world takes a moment to commemorate Earth Day - not merely symbolically, but as an urgent reminder of our collective responsibility to protect the planet we all share. What was once a spontaneous movement in America in 1970 has become a worldwide phenomenon, bringing over a billion people in 193 nations together in shared purpose. The history of Earth Day's beginnings tells us a great deal about our changing relationship with nature. During the late 1960s, when industrial pollution blackened the skies and poisoned the waterways with few regulations, Wisconsin Senator Gaylord Nelson dreamed up a national "teach-in" on environmental concerns. The massive turnout - 20 million Americans on tha...