%0 Journal Article %J S. J. Hassol and J. Katzenberger Elements of Change 1998, Aspen Colorado: Aspen Global Change Institute %D 1998 %T Geoengineering Climate %A David Keith %B S. J. Hassol and J. Katzenberger Elements of Change 1998, Aspen Colorado: Aspen Global Change Institute %G eng %U /files/tkg/files/16_keith_1998_geoengclimate_s.pdf