Plymouth by Night (IMAGE) University of Exeter Caption As the use of artificial light increases in coastal environments, research is urgently needed to assess what levels of light can be considered "safe" so that legislation can be put in place to minimize disruption to ecosystems. Credit Tom Davies, University of Exeter 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.