Ecologist Meng Lu measures green blades of sedge in the Global Change Research Wetland, at the Smithsonian Environmental Research Center in Maryland. Lu led a discovery that under higher carbon dioxide, sedges like these grow shorter and thinner stems. (Credit: Maria Sharova/SERC)
Did you know that trees breathe? That beaver ponds can teach us how to clean water? That there are zombie crabs in our rivers? Welcome to the world of the Smithsonian Environmental Research Center, doing science in your backyard!