Abstract
We conducted interviews to obtain Japanese experts' evaluations on four types of greenhouse gas (GHG) emission reduction measures targeting carbon-intensive industries. The measures were evaluated based on ten criteria, such as GHG emission reduction impacts and economic effectiveness on implementation. Using evaluations by 42 experts in Japan, we conducted a signed rank test and cluster analysis. For each measure, we then identified criteria characteristically evaluated by clusters of the experts. With those evaluation tendencies and expert opinions, we identified key issues to be considered when introducing emission reduction measures: appropriate implementation and coordination with stakeholders based on comparative merits for the upstream carbon tax; minimal complication and concrete methods for consumption-based GHG inventories; clear rules and appropriate levels and kinds of material to be targeted for certification; identification of countries and technologies that are not often chosen for CDM projects; and follow-up measures for the Joint Crediting Mechanism.
