Abstract: A method for obtaining GHG reduction credits associated with GHG reduction efforts, the method comprising grouping a plurality of sites chosen according to given GHG related parameters into a given community cluster, the GHG related parameters comprising distinct types of common potential GHG reduction efforts; profiling GHG reduction efforts provided by a corresponding site; providing an opportunity for converting the GHG reduction efforts into GHG reduction credits; upon acceptance of the opportunity for converting and performing of the GHG reduction efforts, accounting the performed GHG reduction efforts and the converted GHG reduction credits for each performing site; and returning a portion of the converted GHG reduction credits to each site.