Chemical engineers are well-suited to make major contributions toward meeting challenges for the environment, energy, and sustainable development. The Department of Chemical and Biochemical Engineering has an active research program in the science and engineering of air pollution, links between climate and air pollution, sensors for air and water quality, bioremediation and treatment of air, water and sediment, and the design of new environmentally compatible technologies. Our atmospheric environmental research activities span many scales – from local to regional, and to global scale.