For me, an aerial picture is no different than a close-up portrait. It's a question of framing and angle. Helicopters are great for that. But I've also used planes. Of course, I always have a harness.

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

One fifth of human kind depend on fish to live. Today now 70 percent of the fish stock are over-exploited. According to FAO if we don't change our system of fishing the main sea resources will be gone in 2050. We don't want to believe what we know.

For me, an aerial picture is no different than a close-up portrait. It's a question of framing and angle. Helicopters are great for that. But I've also used planes. Of course, I always have a harness.

To have success in your professional life is not so hard. To succeed as a man is more difficult.

For nearly two years, I was flying above the planet with my camera. I knew straight away that this was something important to do, just at this moment, a portrait of the planet for the millennium year. I worked in 80 countries, fighting for money all the time.