Water Models Show Dissolved Deep Carbon (image) University of California - Davis Caption New computer modeling of water under extreme pressure shows that carbonate could dissolve in water deep in the Earth and so return to the surface. This rendering shows water molecules (white/pink) surrounding a carbonate ion (red/grey) with a section of the Earth in the background. Credit Ding Pan and Yubo Zhang, UC Davis Usage Restrictions May be used with acknowledgement of the source. 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.