Sustainable biofuels and carbon footprints

Due to the sharp rise in world population, it is predicted that in the next 20 years, the world's energy demand would increase by 48 per cent. Currently, fossil fuels provide 80 per cent of the world's energy needs. However, the increasingly diminishing supply of fossil fuels combined with their damaging effects on the environment has generated a lot of interest in sustainable biofuels. This will facilitate the shift to a bioeconomy that must be carbon neutral. Biofuels are obtained from biomass like wood and straw, released by direct combustion of dry matter and converted into a gaseous and liquid fuel. In the ensuing decades, biofuels are anticipated to play a significant role in the transition to green energy and sustainable development. Due to their contribution to energy independence, urban and rural development, improvement of the ecological footprint, and decrease in carbon emissions, biofuels offer many appealing qualities. Despite technological advancements, the sustainability aspects of biofuel production methods are of inherent importance. In this review, we have discussed the significance of biofuel, the energy demand and supply statistics and how biofuels are the upcoming fuels playing a very important role in uplifting the global bioeconomy. but on the other aspect, it has been observed through various reports that the Carbon footprint of biofuel is also going to be a severe challenge in the coming days. Thus, before framing the policy on biofuel, it is necessary to look after all possible alternates to reduce the carbon footprint because unless the carbon emission remains the same issue, then the use of biofuel for global change may effect the bioeconomy with negative implications.