The Arctic is facing unprecedented man-made challenges with rippling consequences around the globe. With continental ice melting fast, the average global sea level has risen by more than 8 cm since the 1990s. There could be an additional 60 cm increase by the end of the century. The Arctic plays a key role in forming the ocean currents that drive our climate globally. With the rise of Arctic temperatures and increased fresh water from melted ice, these processes could be affected, putting into question a key mechanism that regulates our climate. In order to understand the changing Arctic environment, sustained monitoring of sea ice, sea level, sea temperature and other variables is required. Copernicus, the flagship Earth Observation Program of the EU, is essential for tracking and predicting these changes. Copernicus provides free and open data on the state of the global environment, including the Arctic. The European Union has an important role to play in helping to develop strategies, to mitigate and adapt to climate change and safeguard the environment, promote sustainable development and support international cooperation. The Copernicus Marine Service implemented by Mercator Ocean International uses a combination of satellite and in-situ observations, as well as numerical models that provide marine data and trends over time and ocean forecasts of our global ocean. The Arctic is also physically opening up. This growth in human activity has important socio-economic, environmental and security implications, and increases the need to aid marine transport and to monitor pollution. Copernicus data is also harness to support sustainable business activities as they emerge in the region. With key satellites ending their missions in the near future, it's vital for Copernicus to sustain satellite observation to minimize any monitoring gaps at this key period in the region's history to continue to support EU Arctic policy. The Copernicus Marine Service delivers a polar ocean and sea ice monitoring and forecasting tool essential to assist in combating climate change and for adapting to our changing world.