We're still eating the leftovers of World War II.

The system of technological production that we have today has been justified in terms of creating more goods to feed more people and to meet more needs. But it actually destroys more of the resources that we need in order to meet those multiple needs. If we shift to an ecological perception, a diversity perception, we realize that some of the instruments of which we are very proud are actually extremely primitive for dealing with nature. To me that is the great lesson of ecological awareness at the turn of the millennium.

My father had been a forester and I had grown up on those hills. I had seen forests and streams disappear. I jumped into Chipko movement and started to work with the peasant women. I learned from them about what forests mean for a rural woman in India in terms of firewood and fodder and medicinal plants and rich knowledge.

If you read Wall Street’s reports, they don’t talk of soya bean as originating in China. They don’t talk of soya bean as soya bean. They talk of Monsanto soya. Monsanto soya is protected by a patent. It has a patent number. It is therefore treated as a creation of Monsanto, a product of Monsanto’s intelligence and innovation.

My mother was a tremendous woman. I was just cleaning up old trunks and I found a book with her notes written during the war years, in the 1940s. She was studying in Lahore, which became Pakistan. She was writing about how women alone could bring peace to the world, that the men with all their greed and egos were creating all these tensions and violence. I always knew she was a feminist, ahead of her time.

Although two thirds of our planet is water, we face an acute water shortage. The water crisis is the most pervasive , most severe, and most invisible dimension of the ecological devastation of the earth.

I did physics because of my love of nature. As a young student of science, I was taught that physics was the way to learn nature. So my travels through physics really are the same urges that make me travel through ecology.