“In the end, climate change is a math problem.”

Wishful thinking is not sound public policy.

The great music for so many artists – the Beatles, the Rolling Stones – was always at the moment when they were closest to pop. It would be easy for U2 to go off and have a concept album, but I want us to stay in the pop fray.

So far as we know, Earth is the only planet which supports life, and it is the only planet on which we can survive.

The overarching factor to me is if we can’t be kind to each other, we won’t be kind to the planet.

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!

Anarchism may be described as the doctrine that all the affairs of men should be managed by individuals or voluntary associations, and that the State should be abolished….. Nor does the Anarchistic scheme furnish any code of morals to be imposed upon the individual. “

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.

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

Humans are mentally sick with a disease called fear.

With a small fraction of the hundreds of billions of dollars spent on the Iraq war, the US and Australia could ensure every starving, sunken-eyed child on the planet could be well fed, have clean water and sanitation and a local school to go to.

Australia must prioritise education spending. It is not a question of whether or not we have the money, it is a question of how we choose to spend it.

Years ago I resolved that because I had no ancestry myself I would leave a record of which my children would be proud, and which might encourage them to still higher effort

Never want something without expecting it

Whereas our common past, out of Africa, saw a global diaspora of humankind, our common future depends on a global coming together and consensus, resulting in a more equitable distribution of the Earth’s largesse.

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.

I think I could have been quite difficult to fathom as a youngster, this kid who didn’t talk about himself very much.

With Climate Change as a Security Risk, WBGU has compiled a flagship report on an issue that quite rightly is rising rapidly up the international political agenda.

It should not be taken in a hot climate. If you are in a place that is cool and peaceful, and you are alone and your mind is turned toward God, then you may take the yogi medicine.

We have a responsibility to first understand how climate change impacts all peoples of the world. Then, we must consider the individual and collective choices and actions that can move us toward a sustainable future.

Over the long term, it is more profitable to do the right thing for the environment than to pollute it.

What we do to animals directly impacts everything, because we are all connected. It disrupts the food chain, it funds terrorism (ivory), it changes our climate, our oceans, it starts wars.

Diplomats are useful only in fair weather. As soon as it rains they drown in every drop.

We should be treating, I think, the whole issue of climate change and global warming with a far greater degree of priority than I think is happening now.

One of the main reasons for the conflict in Syria, and the terrorism that it’s spawned, is climate change and drought.