An agreement was executed in the Kyoto Protocol, in which industrialized countries agreed to reduce carbon emissions by _______ percent by 2008-2012 as of 1990 levels.

Correct Answer: (C) 5.2

Under the Kyoto Protocol adopted in 1997, industrialized countries committed to reducing their overall greenhouse gas emissions by an average of 5.2 percent below 1990 levels during the first commitment period of 2008-2012.