We have the power to abstain from destructive behavior.

The image of Earth from space transformed our view of ourselves. It is maybe the most important image that exists - because we can see ourselves in context in a way that otherwise would be really hard to explain. It should inspire us to wonder about it, to want to know everything we can about it and do everything we can to take care of it.

We are all together in this, we are all together in this single living ecosystem called Planet Earth. As we learn how we fit into the greater scheme of things, and begin to understand how the system works, we can plan ahead, we can use the resources responsibly, to show some respect for this inheritance that goes back 4.6 billion years.

You should know what is taken out of the ecosystem in order to give you a moment's sustenance.

If I seem like a radical it's because I have seen things that others have not.

We don't have to be that greedy generation that just continued to take down the underpinnings of what makes the planet work in our favor.

There is an enormous amount to be learned about the sea; like most wildernesses, it has great potential.