Blaszczak Image (image) Duke University Share Print E-Mail Caption Researcher Joanna Blaszczak collects samples from a stormwater pond in Miami, Fla. as part of a new study that finds the ponds, which are ubiquitous in most cities, aren't a major source of greenhouse gas emissions, as some scientists feared. Credit Jim Heffernan, Duke Univ. Usage Restrictions None 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.