During the most recent COP26 (United Nations Conference on Climate Change of 2021 in its 26th edition); The importance of the Public Transport sector to combat global climate change was communicated because it is responsible for approximately a quarter of global greenhouse gas emissions, according to the Intergovernmental Panel on Climate Change (IPCC) .
That said, a post on the official United Nations site indicated the following: “The sector's emissions have more than doubled since 1970, and about 80% of the increase is due to road vehicles. The United Nations Environment Program (UNEP) estimates that the world's transport sector is almost entirely dependent on fossil fuels. But this could change in the coming decades.”
Undoubtedly the subject will open debate in the next few years, since transforming an entire industry and its consumption will not be an easy task. Almost all world trade depends on mobility, not just land; but the maritime, air and naval sector (to name a few), will have to undergo this mandatory change by official entities and necessary for our planet.