The Polarfront (IMAGE) National Oceanography Centre, UK Caption The Norwegian weather ship Polarfront is equipped with a battery of instruments to measure wind speed, humidity and carbon dioxide. Credit Margaret Yelland (NOCS) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.