Silver-studded Blue (IMAGE) University of York Caption Scientists have discovered why climate change may be contributing to the decline of some British butterflies and moths, such as Silver-studded Blue. Credit Dr Callum Macgregor, University of York 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.