Compressed air can provide limitless amounts of clean energy using technology we have had for hundreds of years.

We don't have to suppose we need oil, or governments, or anything.

The extinction rate is so huge now, we're to the stage where we've got to set up recombinant ecologies. There are no longer enough species left, anywhere, to hold the system together.

The only ethical decision is to take responsibility for our own existence and that of our children.

There is no more time-wasting process than that of believing people will act, and then finding that they will not.

The agriculture taught at colleges between 1930 and 1980 has caused more damage on the face of the Earth than any other factor.

If and when the whole world is secure, we have won a right to explore space, and the oceans. Until we have demonstrated that we can establish a productive and secure earth society, we do not belong anywhere else, nor (I suspect) would we be welcome elsewhere.