Carbon dioxide (CO2) and other greenhouse gases (GHGs) are the primary drivers of the current increase in global temperatures and climate change. In 2023, the International Energy Agency reported that worldwide energy-related CO2 emissions hit a record high of 37.4 billion tonnes. In 2019, the transportation sector contributed nearly 25% of these emissions annually, with 75% of that total coming from road traffic. The consumption of fossil fuels in road transportation is the primary contributor to these emissions. Consequently, it is now more urgent than ever to address climate change and accomplish green emission targets in the transportation sector. It is important to note that the CO2 emissions from motor gasoline use in road transportation have either flattened or declined in the USA, UK, and EU countries. Further, a reduction in petroleum fuel usage and GHG emissions has been observed in South Korea and Japan. In contrast, the GHG and CO2 emissions are on the rise in developing countries like China and India. Nonetheless, all countries are pursuing goals to achieve the GHG emission levels of base year 1990 as stated in the Kyoto Protocol (Japan). The shift towards innovative and intelligent road transport strategies is anticipated to limit emissions and facilitate the decarbonization of road transport.