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.

In nature's economy the currency is not money, it is life.

One of the movements we have developed is to say that, just as intellectual property rights protect the inventions of individuals, common rights are needed to protect the common intellectual heritage of indigenous peoples. These are rights that are recognized through the Convention on Biological Diversity. We are working to make sure that they become foundations of our jurisprudence.

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.

We are in a strange kind of time, where the kind of liberation movements such as anti-apartheid movements and freedom struggles in India need to be reinvented. We need to retool them so that all the gains that our generation has made can be passed on to future generations.

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.

We must occupy the food system to create food democracy.