We have an overdraft with the earth something in excess of 130 per cent. We currently consume something like 30 per cent over and above what we are replacing and rather like an overdraft at a bank that can't go on.

I don't think we have learnt to keep within the limits. They are quite elastic but there is a point beyond which they will break and then you will get a complete and massive change in the climate in which the survival of human species might not be compatible.

Globally, emissions may have to be reduced, the scientists are telling us, by as much as 60% or 70%, with developed countries likely to have to make even bigger cuts if we're going to allow the developing world to have their share of growing industrial prosperity...The Kyoto Protocol is only the first rather modest step. Much, much deeper emission reductions will be needed in future. The political implications are mind-blowing.

This war on terror is bogus.

Sustainable development: Holding our world in trust for our children

We have an overdraft with the earth something in excess of 130 per cent. We currently consume something like 30 per cent over and above what we are replacing and rather like an overdraft at a bank that can't go on.

I think that will only really change when the human races begins to suffer some of the extremely severe consequences of climate change which may be some decades ahead. They will then realise, as we have with the financial crisis, that we are up against the wall and hitting the buffers and we have got to change.