World Resources Institute: Rio de Janeiro is a leader among the Brazilian cities aggressively promoting low-carbon development. In 2011, the city passed a landmark climate change law with a target to reduce greenhouse gas (GHG) emissions 8% below the business-as-usual (BAU) emissions scenario by 2012, 16% by 2016, and 20% by 2020. Now Rio is conducting a GHG inventory for 2012, the first target year under its climate change law. The inventory will measure the citys emissions against its 8% reduction target for 2012, and assess...