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

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.

The more we can grow on already cultivated land, the better.

In the last century, as we learned more about genes, we were able to devise ways of accelerating evolution.

We are sliding back into a dark era, and there seems little we can do about it. I am profoundly depressed at just how difficult it has become merely to get a realistic conversation started on issues such as climate change or genetically modified organisms.

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

There are probably already too many people on the planet.