India ranks as the third-largest greenhouse gas (GHG) emitter globally, with the transportation sector being the primary contributor to its emissions. The capital city serves as a clear example of the environmental havoc caused by petrol- and diesel-powered vehicles. A report by The Energy and Resources Institute reveals that the transportation sector accounts for 47 per cent of GHG emissions in the city. Additionally, the power sector is another significant contributor, responsible for 8 per cent of the total emissions, according to the same report.