There is no question that photography has played a major role in the environmental movement.

My advice for climbers or photographers is to really tune into your own passions and not just what other people are doing or aren't doing. Figure out what works for you, what turns you on, what gives you the greatest amount of energy and feeling of satisfaction.

My first thought is always of light.

Today, I'm very careful not to mention very specific locations when I write or give captions.

Theres no question that photographs communicate more instantly and powerfully than words do, but if you want to communicate a complex concept clearly, you need words, too.

I began to realize that the camera sees the world differently than the human eye and that sometimes those differences can make a photograph more powerful than what you actually observed.

My mountaineering skills are not important to my best photographs, but they do add a component to my work that is definitely a bit different than that of most photographers.