Well they do have a use, but we should never believe that any international conference is going to suddenly solve problems like the condition of the global environment.

The Prime Minister of India, at a meeting that I co-chaired a few months ago, stated that any development that is not sustainable is not development.

Anyone who is seriously interested in me would usually do a little more homework and realise that the extreme criticisms are almost exclusively ideologically based.

I am President of the UN created University for Peace, which has a strong commitment to the relationship between peace, security and the environment. I meet with young people around the world and I always come away enthused and encouraged.

What if a small group of world leaders were to conclude that the principal risk to the Earth comes from the actions of the rich countries?... In order to save the planet, the group decides: Isn't the only hope for the planet that the industrialized civilizations collapse? Isn't it our responsibility to bring that about?

Either we reduce the world's population voluntarily or nature will do this for us, but brutally

I learn something from criticism because when it comes from sources you respect you always examine it and learn.