Noise pollution is basically defined as the presence of simple information that makes it impossible to hear all the other more delicate - and often more important - information. Noise pollution creates, if you will, dumb environments. Our industrial areas, many of our downtown urban areas, are dumb acoustic environments. Very simple, very loud, often unhealthy.

Acoustic ecology is the study of information systems: the shared acoustic environment and how species send and receive messages in this shared acoustic environment. What these messages mean - meaning, what are the consequences and the changes of behavior in any species. And it has as much to do with us individually and biologically as it does with the shaping of cultures and beliefs.

I would say that to listen is to become aware. To become truly informed. You will discover whatever you do.

The most important thing for our species is, before it speaks, to listen to its environment. That has a higher priority in any species' survival. We need to be listening to our environment - in other words, restoring the quiet - not just to our natural areas, but also to towns like Portland, Maine.

I work in the same style as classic landscape photographers. You find the right perspective, and then you wait until the light is right. I do the same. I find the right location, and then I wait for the sound, the atmosphere to be right, and for the space to be revealed.

Healthy areas that are richest in information are those areas in the wild where we can get all the information that's available to us within our human hearing range. The most valuable information throughout human evolution has been faint sounds. We tend to think in our modern world that if it's loud, if it grabs our attention, it's important. We get a lot of that in advertising. But in nature, it's the faintest sound that's important; it has determined, in the past of our ancestors, perhaps, if they will live or die. Faint sounds are the earliest clues of newly arriving information.

An acoustic ecologist is a listener who is aware that sound is information. It's information because it's created by events, events produce sound, and that sound has all kinds of data, if you will, that conveys what event occurred, what the materials were, whether it was sudden, slow, loud, in what direction. And because it is information, we can think of it as a message. The acoustic ecologist studies information systems that are both intentional and sometimes wild.