An Important Greenhouse Gas (image) University of Georgia Caption UGA research scientist Vladimir Samarkin and his colleagues measured the production of nitrous oxide, an important greenhouse gas, at Don Juan Pond in Antarctica and discovered at the site a previously unreported chemical mechanism for the production of this important greenhouse gas. The discovery could help space scientists understand the meaning of similar brine pools on Mars. Credit The University of Georgia Usage Restrictions Please credit the University of Georgia 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.