The Kyoto Protocol Was a Commitment by Industrial Nations

The Kyoto Protocol was a commitment by industrial nations

A) To reduce greenhouse-gas emissions such as carbon dioxide and methane to about 5 percent below 1990 levels by 2012.
B) To increase CO₂ sinks instead of reducing CO₂ emissions.
C) To reduce their CO₂ emissions while helping undeveloped countries increase their CO₂ emissions.
D) To boycott the United States because of their high CO₂ emissions, which currently are more than 20 percent of the global total.