Digital photography and Photoshop have made it very easy for people to take pictures. It's a medium that allows a lot of mediocre stuff to get through.

I can go into the wilderness and not see anyone for days and experience a kind of space that hasn't changed for tens of thousands of years. Having that experience was necessary to my perception of how photography can look at the changes humanity has brought about in the landscape. My work does become a kind of lament.

Somebody referred to what I do as subliminal activism, which I like.

I wish we could launch a ground-breaking competition that motivates kids to invent new ideas in sustainable living.

Like all animals, human beings have always taken what they want from nature. But we are the rogue species. We are unique in our ability to use resources on a scale and at a speed that our fellow species can't.

Sometimes you don't know why you're doing something. You're intuitively following, to see where it leads.

Digital photography and Photoshop have made it very easy for people to take pictures. It's a medium that allows a lot of mediocre stuff to get through.