I have a deep connection with Mahatma Gandhi, partly because my mother was a very, very staunch Gandhian and brought us up that way. When I was six years old, and all the girls were getting nylon dresses, I was very keen to get a nylon frock for my birthday. My mother said, “I can get it for you, but would you rather—through how you live and what you wear and what you eat—ensure that food goes into the hands of the weaver or ensure that profits go into the bank of an industrialist?” That became such a checkstone for everything in life.

I saw brilliant ideas coming out of the [Chipko] movement that needed better articulation, that needed elaboration and systematic analysis. I just followed that and it's been very exciting.

It's not an investment if its destroying the planet.

There is now a patent restricting the use of an herb called philantis neruri for curing jaundice. An even more blatant example is the use of turmeric for healing wounds, which is something every mother and grandmother does in every home in India. Now the Mississippi Medical Center claims to have "invented" the capacity of turmeric to heal wounds.

Today the environmental movement has become opposed to issues of justice. You can see this in the way issues are framed. It's a permanent replay of jobs-versus-the-environment, in nature-versus-bread. These are extremely artificial dichotomies.

If you see cattle as a source of organic manure, animal energy, as well as milk products, then Indian cattle are not inferior. It is only when you measure them as milk machines that they become inferior. What if we measured the dairy cows of America or Jersey or the Swiss Alps in terms of their work functions? They would be terribly inferior.

I started out in nuclear physics. But after I became more sensitized to the environmental and health implications of the nuclear system - I was being trained to be the first women in the fast-breeder reactor in India (and was in it when it first went critical) - I didn't feel comfortable with it. So I went into theoretical physics.