So many times I've photographed stories that show the degradation of the planet. I had one idea to go and photograph the factories that were polluting, and to see all the deposits of garbage. But, in the end, I thought the only way to give us an incentive, to bring hope, is to show the pictures of the pristine planet - to see the innocence.

I have a way to photograph. You work with space, you have a camera, you have a frame, and then a fraction of a second. It's very instinctive. What you do is a fraction of a second, it's there and it's not there. But in this fraction of a second comes your past, comes your future, comes your relation with people, comes your ideology, comes your hate, comes your love - all together in this fraction of a second, it materializes there.

I discovered that close to half the planet is 'pristine.' We live in towns such as London, Paris or Sao Paulo and have the impression that all the pristine areas are gone, but they are not.

What I want is to create a discussion about what is happening around the world and to provoke some debate with these pictures. Nothing more than this.

I am a former economist. I never went to photography school to learn photography.

It is a great honor for me to be compared to Henri Cartier-BressonBut I believe there is a very big difference in the way we put ourselves inside the stories we photograph. He always strove for the decisive moment as being the most important. I always work for a group of pictures, to tell a story. If you ask which picture in a story I like most, it is impossible for me to tell you this. I don't work for an individual picture. If I must select one individual picture for a client, it is very difficult for me.

I'm not a religious person. The language of photography is symbolic.