Soil Microbes (IMAGE) University of Texas at Austin Caption Microbes in the soil emit billions of tons of carbon into the atmosphere each year. A new study from The University of Texas at Austin finds that some microbes produce more atmospheric carbon than others, and that historic rainfall levels drive these microbes' response. Credit Courtesy of Pacific Northwest National Laboratory Usage Restrictions Please use credit noted above. License Licensed 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.