CO2 Injection Begins at Wallula, Wash. (image) DOE/Pacific Northwest National Laboratory Share Print E-Mail Caption Praxair technicians make adjustments to the CO2 piping. The injection well itself is in the foreground, left. Credit Photo courtesy of Boise Inc. Usage Restrictions Photo credit. 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.