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

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

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

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.

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 wish my artwork could persuade millions of people to join a global conversation about sustainability.

I wish I could create an IMAX film that would make my work accessible to a broader audience.