Methane Alert and Response System (MARS) (IMAGE) United Nations Environment Programme Caption The Methane Alert and Response System (MARS) is part of the UNEP International Methane Emissions Observatory (IMEO) strategy to get policy-relevant data into the right hands for emissions mitigation. Credit UNEP Usage Restrictions none License Original 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.