Markku Larjavaara, Associate Professor, Department of Forest Sciences University of Helsinki Markku Larjavaara is a forester and Associate Professor in the Department of Forest Sciences at the University of Helsinki, Finland. He has worked and lived in four continents in both development aid and research studying tree structure and growth, ecosystem carbon, and forest management. Markku has been an editor for three and peer-reviewed for over sixty scientific journals. He has observed the worldâs forests and land use during long overland journeys that crossed land borders of countries home to 76% of the global population.