Mátyás Árvai dendrologist observes and old oak trunk slice. To detect the growth of the trees help us understand local climate back in time, even before the data measurements. This way we can travel back in time and create long data lines.

Understanding climate change

The series follows the daily work of environmental scientists and ecologist who's research and experiment helps understanding the climate change. The pictures were taken during the actual measurements and researches.

Márton Kállai

professional photographer, Szabad Föld
Marton Kallai (1982) is a documentary photographer living in Budapest, Hungary. After graduation he studied photography and sociology in the "ELTE" University Budapest. He has been working as a photographer since 2006. He focuses on documentary photo essays with a special interest in nature and environment.