Many of the medicines we use today, to fight everything from AIDS to cancer, originate as a toxin in an amphibian skin. When we lose these animals, we lose resources. We lose keystone species in the environments where they live.

When you're in the middle of nowhere, when you're on this tiny little island, probably one of ten people ever to step foot on this island, it's taken you a week to get there by boat - and you step near to an albatross nest. It doesn't even look at you as the enemy. You get this great nature moment. Until you realize the albatross, along with the thousands of other winged albatrosses next to it, has constructed its nest of trash.

We live in a time where we have more extinction happening on our planet than since the dinosaurs were wiped out 50 million years ago.

I'm really worried about what the world is going to be like when my daughters are young women, [when] they are young leaders or mothers or businesspeople - whatever they're going to be. I'm afraid they're going to have a less healthy and less biologically rich planet.

Running is my addiction. It's always present. I'm constantly thinking about my next run.

Our health as a society, our robustness as a community, as a nation, as a people, is not only dependent upon fiscal stability, military might, political strength - it's also dependent on a healthy planet.

We know that when push comes to shove, [we can] drive ourselves to save our planet.