Setting Community GHG Reduction Targets

The municipality of Delta, like other BC communities, are going to council to approve community GHG reduction amendments to their community plan to meet provincial requirements set through the Greenhouse Gas Reduction Act by May 31, 2010. Other BC communities are in various stages of target setting and whether communities need to be concerned about the repercussions is up for debate. However, of interest here is how communities are deciding to set their targets. Do they set aspirational targets and aim high? Or bottom-up targets that are built on the current understanding of GHG reduction potential. What is the approach of other communities to this in BC and across Canada?