Lead contamination in Ancient Greece (IMAGE) Heidelberg University Caption Collected during expeditions with the research vessel METEOR: sediment cores from the Aegean Sea, which as natural environmental archives provide insights into the effects of early human activity on ecosystems. Credit Andreas Koutsodendris Usage Restrictions This image may be used only in connection with the contents of this press release, and the source of the image must also be cited. License Original 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.