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

As people around the world become more affluent, they are demanding diets richer in animal protein, which will require ever more robust feed crop yields to sustain.

I don't know how you overcome the dearth of scientists in the government positions.

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

There's almost no food that isn't genetically modified. Genetic modification is the basis of all evolution. Things change because our planet is subjected to a lot of radiation, which causes DNA damage, which gets repaired, but results in mutations, which create a ready mixture of plants that people can choose from to improve agriculture.

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

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.