Coal is the single greatest threat to civilization and all life on our planet.

We're running out of time.

Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now with climate change, yet we dither.

We are on the precipice of climate system tipping points beyond which there is no redemption.

It would be immoral to leave young people with a climate system spiraling out of control.

Global warming has already triggered a sea level rise that could reach from 6 metres (19.69 ft) to 25 metres (27.34 yards).

What we are doing to the future of our children, and the other species on the planet, is a clear moral issue.

How long have we got? We have to stabilize emissions of carbon dioxide within a decade, or temperatures will warm by more than one degree... We don't have much time left.

What has become clear from the science is that we cannot burn all of the fossil fuels without creating a very different planet.

It's as certain that as long as fossil fuels are the cheapest energy, we will just keep burning them.

We have at most ten years—not ten years to decide upon action, but ten years to alter fundamentally the trajectory of global greenhouse emissions.

The visions scared me. And I was scared to tell anyone about them. I didn’t want them to think I was a freak. Maybe I was. That scared me, too.

Wisdom of the Ages: "New Year" For a kid, the ultimate source of confusion. They say it's a new year, but after the break, you realize you are still in the same class, with the same lousy people.

Painting, which is essentially a rhythmic harmony of coloured spaces. Realism was the death of art. Great art should come from the harmony of two lines.

When I look at my kids, and the ease with which they pick up music, I wish I had that.

Some of my greatest memories were on a little league field. We didn't even have any uniforms.

Nature is not a temple, but a ruin. A beautiful ruin, but a ruin all the same.

A wife is like a children's movie; always under-appreciated and without either, life would be incomplete.

The way that I rationalize making photographs is because you're countering what's offensively mass-produced with something that you just want more people to see.

I've been wanting to cut my hair now for at least a year. I've often fantasized about it but I haven't been able to do it because of the contracts that I've had.

You have to give this much to the Luftwaffe: when it knocked down our buildings it did not replace them with anything more offensive than rubble. We did that.