I think we will work our way towards a position that says that having more than two children is irresponsible.

The World Health Organization recently published some data showing that each overweight person causes and additional one tonne of CO2 to be emitted every year. With one billion people overweight around the world-of whom at least 300 million are obese-that's an additional one billion tonnes.

We are now running out of time, and the question now is not what is happening to the climate, but how bad will it be before the world starts doing enough?

Humankind's greatest priority is to reintegrate with the natural world.

A combination of very rapid population growth over the last 50 years and reckless economic growth during the same time has stored up massive problems for societies the world over. No nation is immune. The scientific evidence tells us all we need to know: carry on with business-as-usual growth-at-all-costs, and we're stuffed

The collapse of the world's banking system and the impending disaster of accelerating climate change are not separate phenomena. They are simply the most visible symptoms of a particular model of capitalism that will bring civilisation to its knees. But those symptoms will not get sorted unless and until we commit to a radical transformation of the way we create and distribute wealth in the world today

The 'Big Green Debate' has entered a very interesting stage. Once there was endless controversy; now there is near unanimity. Once there was universal political indifference; now the bandwagon is abrim with politicians in catch-up mode. Once the media were semi-detached: now they're really getting stuck in. And they need to be! Many people are confused and disempowered, and the role of the media in getting then informed and engaged is critical