Last four days were very busy! Good weather and midnight sun favors hard and fruitful work. We have already collected 170 samples of dwarf shrubs (Betula nana, Salix arctica, S.herbacea, Empetrum hermaphroditum, Dryas octopetala) and 40 cores of Betula pubescens. We have worked in different locations including sea coast, rock cliffs, highlands. Four more days of sampling ahead of us!