He founded the Altitude Agency in 1991, which was the world’s first press agency and images bank specialised in aerial photography (500,000 pictures taken in more than 100 countries by more than 100 photographers).
In 1994 Arthus-Bertrand started a thorough study on the state of the Earth sponsored by UNESCO. Therefore he made a picture inventory of the world’s most beautiful landscapes taken from helicopters and balloons. The book from this project, Earth from Above (‘la Terre vue du ciel’) sold over 3 million copies and was translated into 24 languages.
In 2000, his "Earth from Above" free exhibition was set up on numerous big posters on the gates of Jardins du Luxembourg in Paris. It then travelled worldwide from Lyon to Montreal, to 110 cities and was visited by 120 million people.