Carbon Sample from Turn (image) American Society of Agronomy Share Print E-Mail Caption Law collecting greenhouse gas samples from turf plots using a vented flux chamber. Credit Jon Trappe Usage Restrictions Please use with story only. Share Print E-Mail 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.