This could range from harmonising sustainability standards, or at least of methodologies, to the liberalisation of green goods and services. The latter, however, is easier said than done; it has languished with the rest of the Doha results in the WTO context, and is proving difficult to effect at the plurilateral level among like-minded countries. Asia-Pacific Economic Cooperation (APEC) members managed to conclude an agreement of this sort, cutting tariffs on a slim list of 54 goods to 5 per cent as of 2015. The real prize in this respect is non-tariff barriers, as well as services. It is hoped that the current plurilateral efforts to negotiate an Environmental Goods Agreement will eventually lead to such broader commitments.