I'm an old member of Greenpeace. I worried intensely, as I think most of my friends did, that the world was coming apart.

My suggestion is that we should first work to ensure the Third World has clean drinking water and sanitation.

If every country committed to spending 0.05 per cent of GDP on researching non-carbon-emitting energy technologies, that would cost $25 billion a year, and it would do a lot more than massive carbon cuts to fight warming and save lives.

To prepare adequately for the challenge of global warming, we must acknowledge both the good and the bad that it will bring. If our starting point is to prove that Armageddon is on its way, we will not consider all of the evidence, and will not identify the smartest policy choices.

The fact that we're catching more fish per person than we've ever done before doesn't mean that there are not particular places where we've managed fisheries badly.

I'm an old member of Greenpeace. I worried intensely, as I think most of my friends did, that the world was coming apart.

The only thing that will really change global warming in the long run is if we radically increase the speed with which we get alternative technologies to deal with climate change.