We are all born bonded to nature; that's why we put depictions of flowers and forests, rather than bulldozers or log piles, on our walls.

The reality is that if we in this rich, lucky quarter of the planet cannot make a stand for the 30 million other species we share this planet with, let alone our own species, then who can?

I will be Green until the day I die, if not for a long time after.

So far as we know, Earth is the only planet which supports life, and it is the only planet on which we can survive. Our bodies and our minds are fashioned by it. Our hearts resonate with it. There will be little joy for the human spirit if we destroy the natural fabric of Earth with nothing left to do but go shopping. When we imagine the world a century from now, when we look our great grandchildren in the eye and see them smiling back at us because they know we cared for them, we smile too!

Real life security and contentment come not from putting a gun in the cupboard, but from taking a role in the world's future.

I'm worried about the traditional media, but I think the new media is a plus for democracy.

In securing the future of the planet, we secure happiness for ourselves. One of the aims of the Greens is to turn around the tide of pessimism amongst the young people of the world.