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.

We are not far away from the point of no return when it comes to life on earth, and we have some radical choices to make.

I am really sobered by what's happening to ecosystems around our planet and to the wildlife that is to be found there.

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.

We live in uncertain times when it comes to the future of life on Earth.

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

I think the hardest part about my job is the best part of my job - the travel.