The course will give graduate students a broad holistic knowledge about the Arctic and how systems are affected by the ongoing climate change and potentially feed back to the climate system. Lectures and seminars will cover several disciplines within Science (e.g. Atmosphere, Cryosphere, Terrestrial Ecology, Marine issues and Climate modelling) and aims to create a stimulating forum for graduate students with issues that force them to broaden their perspective from their own doctoral research. The course will further strengthen the scientific development of graduate student within Earth System Science and students will gain in-depth knowledge of the ecological consequences of a changing Arctic. The course is also launched for doctoral students in the graduate school ClimBEco, organized by BECC and MERGE. The course is developed in cooperation with the Third Pole Environment. The course is based on one lecturing week with preparation and after work from the home institute.