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.

Most people think visual information is more important than aural information - like, what's this big deal about sound? And why should I bother to listen, rather than look? And here are the facts: there are blind species, in the backs of the caves, the bottoms of the oceans. It's not essential on planet Earth to be able to see, to be a species. But there are no deaf animal species. You have to be able to hear, or you won't get the information you need in order to survive.

If you're listening to a symphony, you're getting all the information, including the audience around you, the delay from the sides of the concert hall, the whole thing. If one of those musicians is sharply out of tune or starts to play a different piece of music than all the others in the orchestra, you immediately notice. When you analyze systems by listening, you can just listen, and you can tell whether the system is healthy or unhealthy. What I've created for you is a perfect model of how we should be listening to our stock market, rather than trying to see it graphically.

Many environmentalists have failed to recognize that the preservation of quiet areas, places off-limits to noise pollution, should probably be a number-one environmental concern, not something we're going to get to later. And I say that because in that quiet is a whole experience that people can have that reaches to their soul. I like to think of quiet places in nature as the think tank of the soul. It's in these very basic levels that we'll be able to see what the real problem is.

I've never really understood how people cannot value the future, or think that the world is going down a fast slippery slope of degradation. No, I don't think so; this is just what it's going to take to wake us up, and allow us to do what our ancestors did. You know, our ancestors brought us here by tooth and claw. A lot of people perished, a lot of pre-humans perished. Life has never been easy. Why should it be easy for us?

I'm in love with Earth. I truly am. And so listening is not work, to work toward a better future. It's joy. To not be able to work toward a better future would be work. That would be tough.

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.