I learned to be a hot-air balloon pilot to take tourists over the Masai Mara Reserve in order to earn some money and finance the work I was doing with my wife, Anne. We were studying the life of a family of lions for more than two years. Taking pictures was a way to capture information we could not put in words.

The whole world is determined by trade - which is really the blood of the world. The driving force is everyone's desire to have a better life. How? By consuming. For countries, the "Holy Grail" is economic growth.

I'm not an expert when it comes to technology, but what changed things for me was autofocus. I used to have to throw away half my pictures because it was so difficult to get the focus right.

The trust we build over the years if of tremendous help to me when I start in a new project and need to find associates.

I never lose an opportunity to speak about my obsession: humankind and the environment.

The key of 'The Earth from Above,' and of 'Home' is to show the beauty of the planet, and thereby to promote love for it.

Will we be able to imagine a new culture of water?