Arctic Getting Greener (1 of 2) (IMAGE) University of Gothenburg Caption “We’ve managed to show that the vegetation changes in our fixed plots are a result of local warming at numerous sites across the world’s tundra,” Robert Björk says. Credit Photo: Ulf Molau och Robert G. Björk 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.