Aviation-climate change research initiative (ACCRI) subject specific white paper (SSWP) on UT/LS chemistry and transport SSWP # I, January 25, 2008 -- Aviation-climate change research initiative (ACCRI) subject specific white paper (SSWP) on UT/LS chemistry and transport SSWP # II, January 24, 2008 -- Climate impact of contrails and contrail cirrus SSWP # IV, January 25, 2008 -- ACCRI theme 4 : contrails and contrail-specific microphysics -- Aviation-climate change research initiative (ACCRI) subject specific white paper (SSWP) on contrail/cirrus optics and radiation SSWP # V, January 25, 2008 -- Aviation-climate change research initiative (ACCRI) subject specific white paper (SSWP) on contrail/cirrus optics and radiation SSWP # VI, January 25, 2008 -- Metrics for comparison of climate impacts from well mixed greenhouse gases and inhomogeneous forcing such as those from UT/LS ozone, contrails and contrail-cirrus -- Aviation-climate change research initiative (ACCRI) subject specific white paper (SSWP) on metrics for climate impacts; climate metrics and aviation : analysis of current understanding and uncertainties, SSWP # VIII, January 22, 2008 -- Aviation and the environment : nextgen and research and development are keys to reducing emissions and their impact on health and climate.