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

There are probably already too many people on the planet.

For me science is not different from art, except in the one small, crucial detail that experiments speak their own truths, not ours.

Civilization depends on our expanding ability to produce food efficiently, which has markedly accelerated thanks to science and technology.

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

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.

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.