Climate implications of GWP-based reductions in greenhouse gas emissions

Possible implications of a GWP-based implementation of GHG reductions on fu ture man-made climate change are explored. Abatement scenarios are establis hed in terms of "CO2, equivalents" using GWP(100); one scenario reducing CO 2 only, and one reducing short-lived gases, mainly CH4. Future temperature changes are calculated by using a simple climate model. Equal emission scen arios in terms of CO2 equivalents do not imply equivalent climate responses and large differences in the magnitude and rate of temperature change are calculated.