This is like playing Russian roulette with a Luger rather than a revolver. One bullet, one chamber - and we're pulling the trigger.

At 1.24 am on 26 April 1986 Chernobyl’s Unit 4 reactor exploded after staff disabled safety systems and performed an ill-advised experiment to check – ironically enough – the reactor’s safety.

We humans, one species of animal amongst millions, have now become the de facto guardians of the planet's climate stability.

If we are to save humanity and the planet from the worst mass extinction of all time, worse even than that at the end of the Permian, we must stop at two degrees.

You'd be forgiven for thinking that climate change means we'll have to sacrifice our creature comforts. But it doesn't have to be that way.

Human releases of carbon dioxide are almost certainly happening faster than any natural carbon release since the beginning of life on Earth.

Our evolutionary psychology preconditions us not to respond to threats which can be postponed until later.

I discovered science, and in the process I hope I became a better environmentalist.

If substantial methyl hydrate melt begins to occur in the Arctic Ocean basin, then the (carbon) accelerator will be jammed, and there will be nothing we can do to cut the speed of climate change.

Once the 'portals of the future close - in Amazonia, Siberia or the Arctic - we will find ourselves powerless to affect the outcome of this dreadful tale.

Conventional economic theory... counts the depletion of resources as the accumulation of wealth.

Fame and fortune await the few with the faith to fall forward despite frustrating failures.

Take me when I'm wild.Take me when I'm free.Take me for meand I will take you as you want to be.

Literature, art, like civilization itself, are only accidents.

I am sad for the dead and I am sad for the livingbut not for my 5 cats

I write about everything, but I just - how faith filters through all that and colors your opinion of other people and life and all that.

Peace is much more precious than a piece of land... let there be no more wars.

I couldn't be happier.

So I came from an environment where I was starved for information, starved for connection.

The competition is not really friendly or peaceful. It leads to oppression in some ways.

I act for the reality, for the moment, and most of all I do it for the process.