If everybody switched to organic farming, we couldn't support the earth's current population - maybe half.

Weeds do become resistant to herbicides, and it needs to be managed with multiple herbicides.

India has the opportunity to be a leader in genetic engineering, It has institutions that no other country has.

If there are more and more environmental refugees, they are going to end up on your doorstep too.

If everybody switched to organic farming, we couldn't support the earth's current population - maybe half.

In agriculture, people have taken wild plants that can't be eaten by people - and turned them into wonderful food sources. And that's because genomes can change, and people working with plants have picked mutations. Mutations are nothing more than genetic changes.

Even as the population doubled from three to six billion, we managed to race ahead with all kinds of technological and scientific events in agriculture - from using more fertilizers to mechanization to advanced plant breeding.