From 1990 to 2008, the world’s most developed economies cut their greenhouse gas emissions from energy production by about _____.
a. 3 percent
b. 5 percent
c. 8 percent
d. 2 percent
Under the Kyoto Protocol, it was agreed to reduce global emissions of six greenhouse gases by an average of 5.2% below 1990 levels between 2008, but the reality is that they did not exceed 2%.
