Which of the following Green House Gases (GHGs) was considered during the second compliance period of Kyoto protocol at Doha?

Correct option is C

Nitrogen Trifluoride (NF3) was included as a greenhouse gas during the second compliance period of the Kyoto Protocol, which was agreed upon during the Doha Amendment in 2012. This period extended from 2013 to 2020, and NF3 was newly added to the list of gases regulated under the Protocol due to its high global warming potential (GWP).
Information Booster:
Kyoto Protocol initially covered six major greenhouse gases: CO2, CH4 (Methane), N2O (Nitrous oxide), HFCs, PFCs, and SF6.
Doha Amendment (2012) marked the beginning of the second commitment period (2013–2020) and added NF3 as a regulated gas due to its high GWP.
NF3 (Nitrogen Trifluoride) is used in electronics manufacturing, particularly in the production of flat-panel displays and photovoltaic cells, making its emissions a growing concern.
Global Warming Potential (GWP): NF3 has a GWP much higher than CO2, which makes its regulation critical in mitigating climate change.
Additional Knowledge:
Sulphur Hexafluoride (SF6): One of the original six gases regulated by the Kyoto Protocol, SF6 is used as an insulating gas in electrical equipment and has one of the highest GWPs.
Hydrofluorocarbons (HFCs): These are also part of the original list and are primarily used as refrigerants, foam-blowing agents, and in air-conditioning systems.
Perfluorocarbons (PFCs): Also included in the original Kyoto list, PFCs are used in electronics manufacturing and aluminum production.