Salient points of the government's 2020 target for reducing greenhouse-gas emissions, announced June 10 by Prime Minister Taro Aso, are as follows:

(1) 2005 is taken as the "base year" from which reductions will be measured.

(2) Heat-trapping emissions in 2020 will be targeted at 15 percent below those of the base year, or 8 percent below 1990 levels.