Consider the following statements:
1. Kyoto Protocol came into force in 2005.
2. Kyoto Protocol deals primarily with the depletion of the ozone layer.
3. Methane as a greenhouse gas is more harmful than carbon dioxide.

Which of the statements given above is/are correct ?

Correct option is B

The Kyoto Protocol was adopted in Kyoto on 11 December, 1997, and entered into force on 16 February, 2005. Hence statement (1) is correct.
The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change. Hence statement (2) is incorrect.
The global warming potential (GWP) of a gas depends on the efficiency of the atoms of that gas and its environmental life-cycle.
The environmental life cycle of carbon dioxide is changeable while its global warming potential remains constant (GWP = 1).
The global warming the potential of Methane was observed 72 in the last twenty years. Therefore, Methane is more dangerous and effective as a greenhouse gas than carbon di-oxide.