We are sufficient to do everything possible to heal this Earth.
The agriculture taught at colleges between 1930 and 1980 has caused more damage on the face of the Earth than any other factor.
Few people today muck around in earth, and when on international flights, I often find I have the only decently dirty fingernails.
We have to rethink how we're going to live on this earth - stop talking about the fact that we've got to have agriculture, we've got to have exports, because all that is the death of us.
"Should we tamper with nature?" is no longer a question - we've tampered with nature on the whole face of the Earth.
