Roadmap to close the carbon cycle (IMAGE) DOE/Pacific Northwest National Laboratory Caption Closing the carbon cycle needs a multifaceted approach that bridges basic science and use-inspired research. Credit (Illustration by Cortland Johnson | Pacific Northwest National Laboratory) Usage Restrictions No restrictions. License Public Domain 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.