When the forest is destroyed, when the river is dammed, when the biodiversity is stolen, when fields are waterlogged or turned saline because of economic activities, it is a question of survival for these people. So our environmental movements have been justice movements.

democracy ... begins from the ground up. Anything living grows from the bottom up. Everything dangerous, like bombs, gets dropped from the sky down.

It is often too late by the time the government reacts.

In England, the population explosion can be linked very clearly with the enclosure of the commons that uprooted the peasants from their land. In India, it was the same thing: the population increased at the end of the 18th century when the British took over and Indian lands were colonized. Instead of the land feeding Indian people it started to feed the British empire. So we had destitution. Destitute people who don't have their own land to feed themselves can only feed themselves by having larger numbers, therefore they multiply. It's the rational response of a dispossessed people.

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.

If you are doing the right thing for the earth, she's giving you great company.

It's worse than slave trade because what is being traded is the very knowledge that makes survival possible for 80 percent of the people of this world. These 80 percent live on the biodiversity and the knowledge they have evolved as part of a rich collective heritage involving the use of seeds for growing crops and medicinal plants for healing.