I'm a radical reformist, because between where we are and where I want to go there's a great deal of work, and I won't see the end of this.

I was recently looking at what they can actually do to reduce consumption of petrol. It would be quite possible to build automobiles out of carbon fibre that would be just as strong, weigh 10 times less and consume 10 times less petrol.

The World Development Movement, to take just one example, is doing good work. Some political parties are, too.

If the economy becomes disembodied from society it can only lead to disaster.

The Sierra Club in the United States has now really come out for population control and reduction.

Everything has to be done to build some sort of international democracy. We've seen only the tiniest beginnings of that.

Now we are flying off into outer space, there is no clear curb on what can be done in the name of the economy.