photographs by Yann Arthus-Bertrand Photographs by Yann Arthus-Bertrand photos by Yann Arthus-Bertrand concept and photographs by Yann Arthus-Bertrand photographs by Jane Burton photographs by Arthur Frank photography by Yann Arthus-Bertrand, Brian Skerry. photographs by Hans Silvester photographs by Kenneth Straiton photographs by Joanna Maclennan