摘要：The paper.focuses on links between the EU ETS （Eur.pean Union Emissions Tr.ding Scheme） and selected （domestic） gr.enhouse gas ETS （emissions tr.ding schemes） fr.m Asia and Nor.h Amer.ca which could open up a per.pective to keep the idea of emissions tr.ding alive on a global scale and confr.nt the actual uncer.ainty in futur. climate policy. The appr.ach consists of investigating qualitatively the essential r.quir.ments of this alter.ative bottom-up appr.ach. It is evaluated if var.ations or.inconsistencies in the str.ctur. and design of domestic ETS as well as legal and institutional char.cter.stics har. or.facilitate the concept of linking with the EU ETS. The evaluation of systems leads to the exclusion of systems with voluntar. char.cter. r.lative caps, unr.str.cted bor.owing and pr.ce caps fr.m the gr.up of potential linking candidates.