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.

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

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.

Life’s a marathon, not a sprint.

War is always an adventure to those who've never seen it.

Ban short-selling, high speed trading and all other instruments of pure speculation

Surrender is Beautiful. When we surrender Our Soul's beauty is reflected in Life's Stream.

All the war-propaganda, all the screaming and lies and hatred, comes invariably from people who are not fighting.

I never went to church a day in my life. The dominant religion (influence) in my family was my grandfather who was a Scientologist.

The trick to writer's block is to sack up and write through it, you see.

Problems of the heart always bruised the soul.

No matter what medium I'm using, or what subject I'm painting, I do retain a fairly set approach to painting.

I like going from one lighted room to another, such is my brain to me; lighted rooms.