TRB’s Transportation Research Circular E-C138: Critical Issues in Aviation and the Environment 2009 explores the major environmental media affected by aviation activities and the key processes that link aviation and the environment, including climate change, alternative fuels, and sustainability. The circular focuses on the state of science, rather than on policy, and the authors of various portions of the circular identify research that has the potential to yield benefits for both aviation and the environment during the next several years to several decades.
    
    E-Newsletter Type: Recently Released TRB Publications