My travels through physics really are the same urges that make me travel through ecology. They are not really different, except that there is an added dimension of seeing ecological destruction and seeing the very life-support system that makes us survive on this planet being destroyed. That makes me do more than just inquire; it compels me to act and to intervene.

The primary threat to nature and people today comes from centralising and monopolising power and control. Not until diversity is made the logic of production will there be a chance for sustainability, justice and peace. Cultivating and conserving diversity is no luxury in our times: it is a survival imperative.

I think the structures of exclusion are more systematically built up in American society, for example, so that young girls interested in science eventually lose their confidence over time. The structures of exclusion work against them. We have other structures of exclusion in India, but not around modern scientific knowledge.

Every farmer must go to the seed industry every year to buy their seed and pay an 80 percent royalty to a corporation. Over-the-fence exchanges have started to be treated as crimes. Or, if you need a biological pest control, you can no longer use the need seed in your back yard. Instead you have to depend on the Grace Corporation or some other entity. That kind of dependency basically leads to increased poverty and increased ecological destruction.

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

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.

A single, one-dimensional way of thinking has created a monoculture of the mind. And the monoculture of the mind has become a self-fulfilling prophecy. This is the root of why we have pitted equity against ecology and sustainability against justice.