WELCOME TO MY FUN SCIENCE BLOG

I am Savita Dhutti,a science teacher at a well established public school in India.I welcome all of you to My science mania ! Its a website,I created for sharing e-learning experience with my students.Science is in fact, a real fun.It is a subject never--never confined within the four walls of the clssroom.Science is a continuous process of learning! I wish to create a pleasing learning environment for my students.So, Come and ENJOY Science with me.

Wednesday 9 January 2008

What is a Watershed?


A watershed is the area of land where all of the water that is under it or drains off of it goes into the same place. John Wesley Powell, scientist geographer, put it best when he said that a watershed is:

"that area of land, a bounded hydrologic system, within which all living things are inextricably linked by their common water course and where, as humans settled, simple logic demanded that they become part of a community."
Watersheds come in all shapes and sizes. They cross county, state, and national boundaries. No matter where you are, you're in a watershed!

Water Wars: Privatization, Pollution and Profit By Vandana Shiva

While draught and desertification are intensifying around the world, corporations are aggressively converting free-flowing water into bottled profits. The water wars of the twenty-first century may match-or even surpass-the oil wars of the twentieth. In "Water Wars: Privatization, Pollution and Profit, "Vandana Shiva, "the world's most prominent radical scientist" (the Guardian), shines a light on activists who are fighting corporate maneuvers to convert this life-sustaining resource into more gold for the elites. In "Water Wars, "Shiva uses her remarkable knowledge of science and society to" "outline the emergence of corporate culture and the historical erosion of communal water rights. Using the international water trade and industrial activities such as damming, mining, and aquafarming as her lens, Shiva exposes the destruction of the earth and the disenfranchisement of the world's poor as they are stripped of rights to a precious common good. In her passionate, feminist style, Shiva celebrates the spiritual and traditional role water has played in communities throughout history, and warns that water privatization threatens cultures and livelihoods worldwide. Shiva calls for a movement to preserve water access for all, and offers a blueprint for global resistance based on examples of successful campaigns. Vandana Shiva is a world-renowned environmental leader and recipient of the 1993 Alternative Nobel Peace Prize (the Right Livelihood Award). She is author of several books, including "Stolen Harvest: The Hijacking of the Global Food Supply" (South End Press, 2000); "Biopiracy: The Plunder of Nature and Knowledge" (South End Press, 1997); and "Staying Alive" (St. Martin'sPress, 1989). Shiva is a leader, along with Ralph Nader and Jeremy Rifkin, in the International Forum on Globalization. Before becoming an activist, Shiva was one of India's leading physicists.