<human>:  Can you explain the scientific consensus on biofuels?
<bot>: The scientific consensus on biofuels is that they have the potential to be a cleaner, renewable alternative energy source to traditional energy sources such as coal, oil and natural gas. The main benefits of biofuels are that they are renewable, made from plant-based sources, and convert energy from the sun into a relatively clean-burning energy source. While biofuels are generally seen as a positive step for renewable energy, there are some drawbacks with them as well, including their lower energy efficiency compared to traditional fuels, cost of production, and negative environmental implications from land-use change and water use. There is still more research needed to understand the full potential of biofuels and their impact on the environment, and more information is needed before any firm conclusions can be drawn.