Aviation and Climate Change

Aircraft emit greenhouse gases and other emissions, contributing to increasing concentrations of such gases in the atmosphere. Many scientists and the Intergovernmental Panel on Climate Change believe these gases may negatively affect the earth¿s climate. Given forecasts of growth in aviation emissions, some gov¿ts. are taking steps to reduce emissions. This report reviews: (1) estimates of aviation¿s current and future contribution to greenhouse gas and other emissions that may affect climate change; (2) existing and potential technological and operational improvements that can reduce aircraft emissions; and (3) policy options for gov¿ts. to help address commercial aircraft emissions. Illustrations.